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Operation Overlord was the codename for the Battle of Normandy, the
Allied An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...
operation that launched the successful invasion of German-occupied
Western Europe Western Europe is the western region of Europe. The region's countries and territories vary depending on context. The concept of "the West" appeared in Europe in juxtaposition to "the East" and originally applied to the ancient Mediterranean ...
during
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
. The operation was launched on 6 June 1944 (D-Day) with the
Normandy landings The Normandy landings were the landing operations and associated airborne operations on Tuesday, 6 June 1944 of the Allied invasion of Normandy in Operation Overlord during World War II. Codenamed Operation Neptune and often referred to as ...
. A 1,200-plane
airborne assault Airborne forces, airborne troops, or airborne infantry are ground combat units carried by aircraft and airdropped into battle zones, typically by parachute drop or air assault. Parachute-qualified infantry and support personnel serving in air ...
preceded an
amphibious assault Amphibious warfare is a type of offensive military operation that today uses naval ships to project ground and air power onto a hostile or potentially hostile shore at a designated landing beach. Through history the operations were conducted ...
involving more than 5,000 vessels. Nearly 160,000 troops crossed the
English Channel The English Channel, "The Sleeve"; nrf, la Maunche, "The Sleeve" (Cotentinais) or ( Jèrriais), (Guernésiais), "The Channel"; br, Mor Breizh, "Sea of Brittany"; cy, Môr Udd, "Lord's Sea"; kw, Mor Bretannek, "British Sea"; nl, Het Kana ...
on 6 June, and more than two million Allied troops were in France by the end of August. The decision to undertake a cross-channel invasion in 1944 was taken at the
Trident Conference The Third Washington Conference ( codenamed Trident) was held in Washington, D.C from May 12 to May 25, 1943. It was a World War II strategic meeting between the heads of government of the United Kingdom and the United States. It was the third c ...
in
Washington Washington commonly refers to: * Washington (state), United States * Washington, D.C., the capital of the United States ** A metonym for the federal government of the United States ** Washington metropolitan area, the metropolitan area centered on ...
in May 1943. General
Dwight D. Eisenhower Dwight David "Ike" Eisenhower (born David Dwight Eisenhower; ; October 14, 1890 – March 28, 1969) was an American military officer and statesman who served as the 34th president of the United States from 1953 to 1961. During World War II, ...
was appointed commander of
Supreme Headquarters Allied Expeditionary Force Supreme Headquarters Allied Expeditionary Force (SHAEF; ) was the headquarters of the Commander of Allied forces in north west Europe, from late 1943 until the end of World War II. U.S. General Dwight D. Eisenhower was the commander in SHAEF th ...
, and General
Bernard Montgomery Field Marshal Bernard Law Montgomery, 1st Viscount Montgomery of Alamein, (; 17 November 1887 – 24 March 1976), nicknamed "Monty", was a senior British Army officer who served in the First World War, the Irish War of Independence and t ...
was named commander of the
21st Army Group The 21st Army Group was a British headquarters formation formed during the Second World War. It controlled two field armies and other supporting units, consisting primarily of the British Second Army and the First Canadian Army. Established in ...
, which comprised all the land forces involved in the invasion. The coast of
Normandy Normandy (; french: link=no, Normandie ; nrf, Normaundie, Nouormandie ; from Old French , plural of ''Normant'', originally from the word for "northman" in several Scandinavian languages) is a geographical and cultural region in Northwestern ...
of northwestern France was chosen as the site of the invasion, with the Americans assigned to land at sectors codenamed
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...
and
Omaha Omaha ( ) is the largest city in the U.S. state of Nebraska and the county seat of Douglas County. Omaha is in the Midwestern United States on the Missouri River, about north of the mouth of the Platte River. The nation's 39th-largest city ...
, the British at
Sword A sword is an edged, bladed weapon intended for manual cutting or thrusting. Its blade, longer than a knife or dagger, is attached to a hilt and can be straight or curved. A thrusting sword tends to have a straighter blade with a pointed ti ...
and
Gold Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile met ...
, and the Canadians at
Juno Juno commonly refers to: *Juno (mythology), the Roman goddess of marriage and queen of the gods *Juno (film), ''Juno'' (film), 2007 Juno may also refer to: Arts, entertainment and media Fictional characters *Juno, in the film ''Jenny, Juno'' *Ju ...
. To meet the conditions expected on the Normandy beachhead, special technology was developed, including two artificial ports called Mulberry harbours and an array of specialised tanks nicknamed
Hobart's Funnies Hobart's Funnies is the nickname given to a number of specialist armoured fighting vehicles derived from tanks operated during the Second World War by units of the 79th Armoured Division of the British Army or by specialists from the Royal Eng ...
. In the months leading up to the invasion, the Allies conducted
Operation Bodyguard Operation Bodyguard was the code name for a World War II deception strategy employed by the Allied states before the 1944 invasion of northwest Europe. Bodyguard set out an overall stratagem for misleading the Oberkommando der Wehrmacht as to ...
, a substantial
military deception Military deception (MILDEC) is an attempt by a military unit to gain an advantage during warfare by misleading adversary decision makers into taking action or inaction that creates favorable conditions for the deceiving force. This is usually ac ...
that used electronic and visual misinformation to mislead the Germans as to the date and location of the main Allied landings.
Adolf Hitler Adolf Hitler (; 20 April 188930 April 1945) was an Austrian-born German politician who was dictator of Nazi Germany, Germany from 1933 until Death of Adolf Hitler, his death in 1945. Adolf Hitler's rise to power, He rose to power as the le ...
placed Field Marshal
Erwin Rommel Johannes Erwin Eugen Rommel () (15 November 1891 – 14 October 1944) was a German field marshal during World War II. Popularly known as the Desert Fox (, ), he served in the ''Wehrmacht'' (armed forces) of Nazi Germany, as well as servi ...
in charge of developing fortifications all along Hitler's proclaimed
Atlantic Wall The Atlantic Wall (german: link=no, Atlantikwall) was an extensive system of coastal defences and fortifications built by Nazi Germany between 1942 and 1944 along the coast of continental Europe and Scandinavia as a defence against an anticip ...
in anticipation of an invasion of France. The Allies failed to accomplish their objectives for the first day, but gained a tenuous foothold that they gradually expanded when they captured the port at
Cherbourg Cherbourg (; , , ), nrf, Chèrbourg, ) is a former commune and subprefecture located at the northern end of the Cotentin peninsula in the northwestern French department of Manche. It was merged into the commune of Cherbourg-Octeville on 28 Feb ...
on 26 June and the city of
Caen Caen (, ; nrf, Kaem) is a commune in northwestern France. It is the prefecture of the department of Calvados. The city proper has 105,512 inhabitants (), while its functional urban area has 470,000,German 7th Army trapped in the Falaise pocket by 19 August. The Allies launched a second invasion from the
Mediterranean Sea The Mediterranean Sea is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean Basin and almost completely enclosed by land: on the north by Western and Southern Europe and Anatolia, on the south by North Africa, and on the ea ...
of southern France (code-named
Operation Dragoon Operation Dragoon (initially Operation Anvil) was the code name for the landing operation of the Allied invasion of Provence (Southern France) on 15August 1944. Despite initially designed to be executed in conjunction with Operation Overlord, th ...
) on 15 August, and the
Liberation of Paris The liberation of Paris (french: Libération de Paris) was a military battle that took place during World War II from 19 August 1944 until the German garrison surrendered the French capital on 25 August 1944. Paris had been occupied by Nazi Germ ...
followed on 25 August. German forces retreated east across the
Seine ) , mouth_location = Le Havre/Honfleur , mouth_coordinates = , mouth_elevation = , progression = , river_system = Seine basin , basin_size = , tributaries_left = Yonne, Loing, Eure, Risle , tributarie ...
on 30 August 1944, marking the close of Operation Overlord.


Preparations for D-Day

In June 1940, Germany's leader
Adolf Hitler Adolf Hitler (; 20 April 188930 April 1945) was an Austrian-born German politician who was dictator of Nazi Germany, Germany from 1933 until Death of Adolf Hitler, his death in 1945. Adolf Hitler's rise to power, He rose to power as the le ...
had triumphed in what he called "the most famous victory in history"—the
fall of France The Battle of France (french: bataille de France) (10 May – 25 June 1940), also known as the Western Campaign ('), the French Campaign (german: Frankreichfeldzug, ) and the Fall of France, was the German invasion of France during the Second World ...
. British craft evacuated to England over 338,000 Allied troops trapped along the northern coast of France (including much of the British Expeditionary Force (BEF)) in the
Dunkirk evacuation The Dunkirk evacuation, codenamed Operation Dynamo and also known as the Miracle of Dunkirk, or just Dunkirk, was the evacuation of more than 338,000 Allied soldiers during the Second World War from the beaches and harbour of Dunkirk, in the ...
(27 May to 4 June). British planners reported to Prime Minister
Winston Churchill Sir Winston Leonard Spencer Churchill (30 November 187424 January 1965) was a British statesman, soldier, and writer who served as Prime Minister of the United Kingdom twice, from 1940 to 1945 Winston Churchill in the Second World War, dur ...
on 4 October that even with the help of other
Commonwealth A commonwealth is a traditional English term for a political community founded for the common good. Historically, it has been synonymous with "republic". The noun "commonwealth", meaning "public welfare, general good or advantage", dates from the ...
countries and the United States, it would not be possible to regain a foothold in continental Europe in the near future. After the Axis invaded the Soviet Union in June 1941, Soviet leader
Joseph Stalin Joseph Vissarionovich Stalin (born Ioseb Besarionis dze Jughashvili; – 5 March 1953) was a Georgian revolutionary and Soviet political leader who led the Soviet Union from 1924 until his death in 1953. He held power as General Secreta ...
began pressing for a
second front The Western Front was a military theatre of World War II encompassing Denmark, Norway, Luxembourg, Belgium, the Netherlands, the United Kingdom, France, and Germany. The Italian front is considered a separate but related theater. The Wester ...
in Western Europe. Churchill declined because he felt that even with American help the British did not have adequate forces for such a strike, and he wished to avoid costly frontal assaults such as those that had occurred at the
Somme __NOTOC__ Somme or The Somme may refer to: Places *Somme (department), a department of France *Somme, Queensland, Australia *Canal de la Somme, a canal in France *Somme (river), a river in France Arts, entertainment, and media * ''Somme'' (book), a ...
and Passchendaele in
World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fightin ...
. Two tentative plans code-named Operation Roundup and
Operation Sledgehammer Operation Sledgehammer was an Allied plan for a cross-Channel invasion of Europe during World War II, as the first step in helping to reduce pressure on the Soviet Red Army by establishing a Second Front. It was to be executed in 1942 and acted as ...
were put forward for 1942–43, but neither was deemed by the British to be practical or likely to succeed. Instead, the
Allies An alliance is a relationship among people, groups, or states that have joined together for mutual benefit or to achieve some common purpose, whether or not explicit agreement has been worked out among them. Members of an alliance are called ...
expanded their activity in the Mediterranean, launching the
invasion An invasion is a military offensive in which large numbers of combatants of one geopolitical entity aggressively enter territory owned by another such entity, generally with the objective of either: conquering; liberating or re-establishing con ...
of
French North Africa French North Africa (french: Afrique du Nord française, sometimes abbreviated to ANF) is the term often applied to the territories controlled by France in the North African Maghreb during the colonial era, namely Algeria, Morocco and Tunisia. In ...
in November 1942, the
invasion of Sicily The Allied invasion of Sicily, also known as Operation Husky, was a major campaign of World War II in which the Allied forces invaded the island of Sicily in July 1943 and took it from the Axis powers ( Fascist Italy and Nazi Germany). It bega ...
in July 1943, and invading Italy in September. These campaigns provided the troops with valuable experience in
amphibious warfare Amphibious warfare is a type of offensive military operation that today uses naval ships to project ground and air power onto a hostile or potentially hostile shore at a designated landing beach. Through history the operations were conducte ...
. Those attending the
Trident Conference The Third Washington Conference ( codenamed Trident) was held in Washington, D.C from May 12 to May 25, 1943. It was a World War II strategic meeting between the heads of government of the United Kingdom and the United States. It was the third c ...
in Washington in May 1943 took the decision to launch a cross-Channel invasion within the next year. Churchill favoured making the main Allied thrust into Germany from the Mediterranean theatre, but the Americans, who were providing the bulk of the men and equipment, over-ruled him. British Lieutenant-General
Frederick E. Morgan Lieutenant General Sir Frederick Edgworth Morgan, (5 February 1894 – 19 March 1967) was a senior officer of the British Army who fought in both world wars. He is best known as the chief of staff to the Supreme Allied Commander (COSSAC), the ...
was appointed Chief of Staff, Supreme Allied Commander (COSSAC), to begin detailed planning. The initial plans were constrained by the number of available
landing craft Landing craft are small and medium seagoing watercraft, such as boats and barges, used to convey a landing force (infantry and vehicles) from the sea to the shore during an amphibious assault. The term excludes landing ships, which are larger. Pr ...
, most of which were already committed in the Mediterranean and in the Pacific. In part because of lessons learned in the
Dieppe Raid Operation Jubilee or the Dieppe Raid (19 August 1942) was an Allied amphibious attack on the German-occupied port of Dieppe in northern France, during the Second World War. Over 6,050 infantry, predominantly Canadian, supported by a regiment o ...
of 19 August 1942, the Allies decided not to directly assault a heavily defended French seaport in their first landing. The failure at Dieppe also highlighted the need for adequate artillery and air support, particularly
close air support In military tactics, close air support (CAS) is defined as air action such as air strikes by fixed or rotary-winged aircraft against hostile targets near friendly forces and require detailed integration of each air mission with fire and moveme ...
, and specialised ships able to travel extremely close to shore. The short operating range of British aircraft such as the
Supermarine Spitfire The Supermarine Spitfire is a British single-seat fighter aircraft used by the Royal Air Force and other Allied countries before, during, and after World War II. Many variants of the Spitfire were built, from the Mk 1 to the Rolls-Royce Grif ...
and
Hawker Typhoon The Hawker Typhoon is a British single-seat fighter-bomber, produced by Hawker Aircraft. It was intended to be a medium-high altitude interceptor, as a replacement for the Hawker Hurricane, but several design problems were encountered and i ...
greatly limited the number of potential landing-sites, as comprehensive air support depended upon having planes overhead for as long as possible. Morgan considered four sites for the landings:
Brittany Brittany (; french: link=no, Bretagne ; br, Breizh, or ; Gallo language, Gallo: ''Bertaèyn'' ) is a peninsula, Historical region, historical country and cultural area in the west of modern France, covering the western part of what was known ...
, the
Cotentin Peninsula The Cotentin Peninsula (, ; nrf, Cotentîn ), also known as the Cherbourg Peninsula, is a peninsula in Normandy that forms part of the northwest coast of France. It extends north-westward into the English Channel, towards Great Britain. To its w ...
, Normandy, and the
Pas de Calais The Strait of Dover or Dover Strait (french: Pas de Calais - ''Strait of Calais''), is the strait at the narrowest part of the English Channel, marking the boundary between the Channel and the North Sea, separating Great Britain from continent ...
. As Brittany and Cotentin are peninsulas, the Germans could have cut off the Allied advance at a relatively narrow
isthmus An isthmus (; ; ) is a narrow piece of land connecting two larger areas across an expanse of water by which they are otherwise separated. A tombolo is an isthmus that consists of a spit or bar, and a strait is the sea counterpart of an isthmu ...
, so these sites were rejected. The Pas de Calais, the closest point in continental Europe to Britain, was the location of launch sites for
V-1 V1, V01 or V-1 can refer to version one (for anything) (e.g., see version control) V1, V01 or V-1 may also refer to: In aircraft * V-1 flying bomb, a World War II German weapon * V1 speed, the maximum speed at which an aircraft pilot may abort ...
and
V-2 rocket The V-2 (german: Vergeltungswaffe 2, lit=Retaliation Weapon 2), with the technical name ''Aggregat 4'' (A-4), was the world’s first long-range guided ballistic missile. The missile, powered by a liquid-propellant rocket engine, was developed ...
s, then still under development. The Germans regarded it as the most likely initial landing zone and accordingly made it the most heavily fortified region; however, it offered the Allies few opportunities for expansion as the area is bounded by numerous rivers and canals. On the other hand, landings on a broad front in Normandy would permit simultaneous threats against the port of
Cherbourg Cherbourg (; , , ), nrf, Chèrbourg, ) is a former commune and subprefecture located at the northern end of the Cotentin peninsula in the northwestern French department of Manche. It was merged into the commune of Cherbourg-Octeville on 28 Feb ...
, coastal ports further west in Brittany, and an overland attack towards Paris and eventually into Germany. The Allies therefore chose Normandy as the landing site. The most serious drawback of the Normandy coast – the lack of port facilities – would be overcome through the development and deployment of artificial harbours. The COSSAC staff planned to begin the invasion on 1 May 1944. The initial draft of the plan was accepted at the Quebec Conference in August 1943. General Dwight D. Eisenhower was appointed commander of
Supreme Headquarters Allied Expeditionary Force Supreme Headquarters Allied Expeditionary Force (SHAEF; ) was the headquarters of the Commander of Allied forces in north west Europe, from late 1943 until the end of World War II. U.S. General Dwight D. Eisenhower was the commander in SHAEF th ...
(SHAEF). General
Bernard Montgomery Field Marshal Bernard Law Montgomery, 1st Viscount Montgomery of Alamein, (; 17 November 1887 – 24 March 1976), nicknamed "Monty", was a senior British Army officer who served in the First World War, the Irish War of Independence and t ...
was named commander of the
21st Army Group The 21st Army Group was a British headquarters formation formed during the Second World War. It controlled two field armies and other supporting units, consisting primarily of the British Second Army and the First Canadian Army. Established in ...
, which comprised all of the land forces involved in the invasion. On 31 December 1943, Eisenhower and Montgomery first saw the COSSAC plan, which proposed amphibious landings by three divisions, with two more divisions in support. The two generals immediately insisted on expanding the scale of the initial invasion to five divisions, with airborne descents by three additional divisions, to allow operations on a wider front and to speed up the capture of the port at Cherbourg. This significant expansion required the acquisition of additional landing craft, which caused the invasion to be delayed by a month until June 1944. Eventually the Allies committed 39 divisions to the Battle of Normandy: 22 American, 12 British, three Canadian, one Polish, and one French, totalling over a million troops.


Allied invasion plan

"Overlord" was the name assigned to the establishment of a large-scale
lodgement A lodgement is an enclave, taken and defended by force of arms against determined opposition, made by increasing the size of a bridgehead, beachhead, or airhead into a substantial defended area, at least the rear parts of which are out of direct ...
on the Continent. The first phase, the amphibious invasion and establishment of a secure foothold, was code-named
Operation Neptune Operation or Operations may refer to: Arts, entertainment and media * ''Operation'' (game), a battery-operated board game that challenges dexterity * Operation (music), a term used in musical set theory * ''Operations'' (magazine), Multi-Man ...
and is often referred to as "D-Day". To gain the required air superiority needed to ensure a successful invasion, the Allies launched a strategic bombing campaign (codenamed
Pointblank Point-blank range is any distance over which a certain firearm can hit a target without the need to compensate for bullet drop, and can be adjusted over a wide range of distances by sighting in the firearm. If the bullet leaves the barrel paral ...
) to target German aircraft-production, fuel supplies, and airfields. Under the
Transport Plan The Transportation Plan was a plan for strategic bombing during World War II against bridges, rail centres, including marshalling yards and repair shops in France with the goal of limiting the German military response to the invasion of France ...
, communications infrastructure and road and rail links were bombed to cut off the north of France and to make it more difficult to bring up reinforcements. These attacks were widespread so as to avoid revealing the exact location of the invasion. Elaborate
deceptions ''Deceptions'' is a 1990 erotic drama film starring Nicollette Sheridan, Harry Hamlin and Robert Davi. It was directed by Ruben Preuss and written by Ken Denbow and Richard Taylor. The film received a nomination for a CableACE Award for "best i ...
were planned to prevent the Germans from determining the timing and location of the invasion. The coastline of Normandy was divided into seventeen sectors, with codenames using a
spelling alphabet A spelling alphabet ( also called by various other names) is a set of words used to represent the letters of an alphabet in oral communication, especially over a two-way radio or telephone. The words chosen to represent the letters sound sufficient ...
—from Able, west of
Omaha Omaha ( ) is the largest city in the U.S. state of Nebraska and the county seat of Douglas County. Omaha is in the Midwestern United States on the Missouri River, about north of the mouth of the Platte River. The nation's 39th-largest city ...
, to Roger on the east flank of
Sword A sword is an edged, bladed weapon intended for manual cutting or thrusting. Its blade, longer than a knife or dagger, is attached to a hilt and can be straight or curved. A thrusting sword tends to have a straighter blade with a pointed ti ...
. Eight further sectors were added when the invasion was extended to include
Utah Utah ( , ) is a state in the Mountain West subregion of the Western United States. Utah is a landlocked U.S. state bordered to its east by Colorado, to its northeast by Wyoming, to its north by Idaho, to its south by Arizona, and to it ...
on the Cotentin Peninsula. Sectors were further subdivided into beaches identified by the colours Green, Red, and White. Allied planners envisaged preceding the sea-borne landings with airborne drops: near Caen on the eastern flank to secure the
Orne River The Orne () is a river in Normandy, within northwestern France. It is long. It discharges into the English Channel at the port of Ouistreham. Its source is in Aunou-sur-Orne, east of Sées. Its main tributaries are the Odon and the Rouvre. The ...
bridges, and north of
Carentan Carentan () is a small rural town near the north-eastern base of the French Cotentin Peninsula in Normandy in north-western France, with a population of about 6,000. It is a former commune in the Manche department. On 1 January 2016, it was merg ...
on the western flank. The initial goal was to capture Carentan, Isigny,
Bayeux Bayeux () is a Communes of France, commune in the Calvados (department), Calvados Departments of France, department in Normandy (administrative region), Normandy in northwestern France. Bayeux is the home of the Bayeux Tapestry, which depicts ...
, and Caen. The Americans, assigned to land at Utah and Omaha, were to cut off the Cotentin Peninsula and capture the port facilities at Cherbourg. The British at Sword and
Gold Gold is a chemical element with the symbol Au (from la, aurum) and atomic number 79. This makes it one of the higher atomic number elements that occur naturally. It is a bright, slightly orange-yellow, dense, soft, malleable, and ductile met ...
, and the Canadians at
Juno Juno commonly refers to: *Juno (mythology), the Roman goddess of marriage and queen of the gods *Juno (film), ''Juno'' (film), 2007 Juno may also refer to: Arts, entertainment and media Fictional characters *Juno, in the film ''Jenny, Juno'' *Ju ...
, were to capture Caen and form a front line from
Caumont-l'Éventé Caumont-l'Éventé () is a former commune in the Calvados department in northwestern France. On 1 January 2017, it was merged into the new commune Caumont-sur-Aure.Falaise Falaise may refer to: Places * Falaise, Ardennes, France * Falaise, Calvados, France ** The Falaise pocket was the site of a battle in the Second World War * La Falaise, in the Yvelines ''département'', France * The Falaise escarpment in Quebe ...
. A secure lodgement would be established and an attempt made to hold all territory captured north of the
Avranches Avranches (; nrf, Avraunches) is a commune in the Manche department, and the region of Normandy, northwestern France. It is a subprefecture of the department. The inhabitants are called ''Avranchinais''. History By the end of the Roman period, t ...
-Falaise line during the first three weeks. The Allied armies would then swing left to advance towards the
River Seine ) , mouth_location = Le Havre/Honfleur , mouth_coordinates = , mouth_elevation = , progression = , river_system = Seine basin , basin_size = , tributaries_left = Yonne, Loing, Eure, Risle , tributarie ...
. The invasion fleet, led by Admiral Sir
Bertram Ramsay Admiral Sir Bertram Home Ramsay, KCB, KBE, MVO (20 January 1883 – 2 January 1945) was a Royal Navy officer. He commanded the destroyer during the First World War. In the Second World War, he was responsible for the Dunkirk evacuation in ...
, was split into the Western Naval Task Force (under Admiral Alan G Kirk) supporting the American sectors and the Eastern Naval Task Force (under Admiral Sir
Philip Vian Admiral of the Fleet Sir Philip Louis Vian, & Two Bars (15 July 1894 – 27 May 1968) was a Royal Navy officer who served in both World Wars. Vian specialised in naval gunnery from the end of World War I, and subsequently received sever ...
) in the British and Canadian sectors. The American forces of the First Army, led by Lieutenant General
Omar Bradley Omar Nelson Bradley (February 12, 1893April 8, 1981) was a senior Officer (armed forces), officer of the United States Army during and after World War II, rising to the rank of General of the Army (United States), General of the Army. Bradley ...
, comprised VII Corps (Utah) and
V Corps 5th Corps, Fifth Corps, or V Corps may refer to: France * 5th Army Corps (France) * V Cavalry Corps (Grande Armée), a cavalry unit of the Imperial French Army during the Napoleonic Wars * V Corps (Grande Armée), a unit of the Imperial French Ar ...
(Omaha). On the British side, Lieutenant-General
Miles Dempsey General Sir Miles Christopher Dempsey, (15 December 1896 – 5 June 1969) was a senior British Army officer who served in both world wars. During the Second World War he commanded the Second Army in north west Europe. A highly professional an ...
commanded the Second Army, under which XXX Corps was assigned to Gold and
I Corps I Corps, 1st Corps, or First Corps may refer to: France * 1st Army Corps (France) * I Cavalry Corps (Grande Armée), a cavalry unit of the Imperial French Army during the Napoleonic Wars * I Corps (Grande Armée), a unit of the Imperial French A ...
to Juno and Sword. Land forces were under the overall command of Montgomery, and air command was assigned to
Air Chief Marshal Air chief marshal (Air Chf Mshl or ACM) is a high-ranking air officer originating from the Royal Air Force. The rank is used by air forces of many countries that have historical British influence. An air chief marshal is equivalent to an Admir ...
Sir
Trafford Leigh-Mallory Air Chief Marshal Sir Trafford Leigh-Mallory, (11 July 1892 – 14 November 1944) was a senior commander in the Royal Air Force. Leigh-Mallory served as a Royal Flying Corps pilot and squadron commander during the First World War. Remaining in th ...
. The
First Canadian Army The First Canadian Army (french: 1reArmée canadienne) was a field army and a formation of the Canadian Army in World War II in which most Canadian elements serving in North-West Europe were assigned. It served on the Western Front from July 1944 ...
included personnel and units from
Poland Poland, officially the Republic of Poland, is a country in Central Europe. It is divided into 16 administrative provinces called voivodeships, covering an area of . Poland has a population of over 38 million and is the fifth-most populous ...
, Belgium, and the Netherlands. Other Allied nations also participated.


Reconnaissance

The
Allied Expeditionary Air Force The Allied Expeditionary Air Force (AEAF), also known as the Allied Armies’ Expeditionary Air Force (AAEAF), was the expeditionary warfare component of the Supreme Headquarters Allied Expeditionary Force (SHAEF) which controlled the tactical ai ...
undertook over 3,200 photo-reconnaissance sorties from April 1944 until the start of the invasion. Photos of the coastline were taken at extremely low altitude to show the invaders the terrain, obstacles on the beach, and defensive structures such as bunkers and gun emplacements. To avoid alerting the Germans as to the location of the invasion, this work had to be undertaken over the entire European coastline. Inland terrain, bridges, troop emplacements, and buildings were also photographed, in many cases from several angles, to give the Allies as much information as possible. Members of
Combined Operations Pilotage Parties Combined Operations Headquarters was a department of the British War Office set up during Second World War to harass the Germans on the European continent by means of raids carried out by use of combined naval and army forces. History The comm ...
clandestinely prepared detailed harbour maps, including
depth sounding Depth sounding, often simply called sounding, is measuring the depth of a body of water. Data taken from soundings are used in bathymetry to make maps of the floor of a body of water, such as the seabed topography. Soundings were traditionally ...
s. An appeal for holiday pictures and postcards of Europe announced on the
BBC #REDIRECT BBC #REDIRECT BBC #REDIRECT BBC Here i going to introduce about the best teacher of my life b BALAJI sir. He is the precious gift that I got befor 2yrs . How has helped and thought all the concept and made my success in the 10th board ex ...
produced over ten million items, some of which proved useful. Information collected by the
French resistance The French Resistance (french: La Résistance) was a collection of organisations that fought the German occupation of France during World War II, Nazi occupation of France and the Collaborationism, collaborationist Vichy France, Vichy régim ...
helped provide details on Axis troop movements and on construction techniques used by the Germans for bunkers and other defensive installations. Many German radio messages were encoded using the Enigma machine and other enciphering techniques and the codes were changed frequently. A team of code breakers stationed at
Bletchley Park Bletchley Park is an English country house and estate in Bletchley, Milton Keynes ( Buckinghamshire) that became the principal centre of Allied code-breaking during the Second World War. The mansion was constructed during the years following ...
worked to break codes as quickly as possible to provide advance information on German plans and troop movements. British military intelligence code-named this information
Ultra adopted by British military intelligence in June 1941 for wartime signals intelligence obtained by breaking high-level encrypted enemy radio and teleprinter communications at the Government Code and Cypher School (GC&CS) at Bletchley Park. '' ...
intelligence as it could only be provided to the top level of commanders. The Enigma code used by Field Marshal
Gerd von Rundstedt Karl Rudolf Gerd von Rundstedt (12 December 1875 – 24 February 1953) was a German field marshal in the '' Heer'' (Army) of Nazi Germany during World War II. Born into a Prussian family with a long military tradition, Rundstedt entered th ...
, ''Oberbefehlshaber'' West (Supreme Commander West;
OB West ''Oberbefehlshaber West'' (German: initials OB West), German for "high commander in the West") was the overall commander of the ''Westheer'', the German armed forces on the Western Front during World War II. It was directly subordinate to the Obe ...
), commander of the
Western Front Western Front or West Front may refer to: Military frontiers *Western Front (World War I), a military frontier to the west of Germany *Western Front (World War II), a military frontier to the west of Germany *Western Front (Russian Empire), a majo ...
, was broken by the end of March. German intelligence changed the Enigma codes right after the Allied landings of 6 June but by 17 June the Allies were again consistently able to read them.


Technology

In response to the lessons learned at the disastrous
Dieppe Raid Operation Jubilee or the Dieppe Raid (19 August 1942) was an Allied amphibious attack on the German-occupied port of Dieppe in northern France, during the Second World War. Over 6,050 infantry, predominantly Canadian, supported by a regiment o ...
, the Allies developed new technologies to help ensure the success of Overlord. To supplement the preliminary offshore bombardment and aerial assaults, some of the landing craft were equipped with artillery and anti-tank guns to provide close supporting fire. The Allies had decided not to immediately attack any of the heavily protected French ports and two artificial ports, called Mulberry harbours, were designed by COSSAC planners. Each assembly consisted of a floating outer
breakwater Breakwater may refer to: * Breakwater (structure), a structure for protecting a beach or harbour Places * Breakwater, Victoria, a suburb of Geelong, Victoria, Australia * Breakwater Island Breakwater Island () is a small island in the Palme ...
, inner concrete caissons (called
Phoenix breakwaters The Phoenix breakwaters were a set of reinforced concrete caissons built as part of the artificial Mulberry harbours that were assembled as part of the preparations for the Normandy landings during World War II. They were constructed by civil eng ...
) and several floating piers. The Mulberry harbours were supplemented by
blockship A blockship is a ship deliberately sunk to prevent a river, channel, or canal from being used. It may either be sunk by a navy defending the waterway to prevent the ingress of attacking enemy forces, as in the case of at Portland Harbour in 1914; ...
shelters (codenamed "Gooseberries"). With the expectation that fuel would be difficult or impossible to obtain on the continent, the Allies built a "Pipe-Line Under The Ocean" (
PLUTO Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of trans-Neptunian object, bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the S ...
). Specially developed pipes in diameter were to be laid under the Channel from the
Isle of Wight The Isle of Wight ( ) is a county in the English Channel, off the coast of Hampshire, from which it is separated by the Solent. It is the largest and second-most populous island of England. Referred to as 'The Island' by residents, the Isle of ...
to Cherbourg by D-Day plus 18. Technical problems and the delay in capturing Cherbourg meant the pipeline was not operational until 22 September. A second line was laid from
Dungeness Dungeness () is a headland on the coast of Kent, England, formed largely of a shingle beach in the form of a cuspate foreland. It shelters a large area of low-lying land, Romney Marsh. Dungeness spans Dungeness Nuclear Power Station, the hamlet ...
to Boulogne in late October. The British military built a series of specialised tanks, nicknamed
Hobart's Funnies Hobart's Funnies is the nickname given to a number of specialist armoured fighting vehicles derived from tanks operated during the Second World War by units of the 79th Armoured Division of the British Army or by specialists from the Royal Eng ...
, to deal with conditions expected during the Normandy campaign. Developed under the supervision of Major-General
Percy Hobart Major General Sir Percy Cleghorn Stanley Hobart, (14 June 1885 – 19 February 1957), also known as "Hobo", was a British military engineer noted for his command of the 79th Armoured Division during the Second World War. He was responsible for ...
, these were specially modified
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the Military history of the United States during World War II, United States and Allies of World War II, Western Allies in World War II. The M4 Sherman prove ...
and
Churchill tank The Tank, Infantry, Mk IV (A22) Churchill was a British infantry tank used in the Second World War, best known for its heavy armour, large longitudinal chassis with all-around tracks with multiple bogies, its ability to climb steep slopes, a ...
s. Examples include the
Sherman Crab A mine flail is a vehicle-mounted device that makes a safe path through a minefield by deliberately detonating land mines in front of the vehicle that carries it. They were first used by the British during World War II. The mine flail consists of ...
tank (equipped with a mine flail), the
Churchill Crocodile The Churchill Crocodile was a British flame-throwing tank of late Second World War. It was a variant of the Tank, Infantry, Mk IV (A22) Churchill Mark VII, although the Churchill Mark IV was initially chosen to be the base vehicle. The Crocod ...
(a flame-throwing tank), and the
Armoured Ramp Carrier This is a list of specialist variants of the Churchill tank which were used for purposes other than frontline combat. Churchill Oke A Churchill II or III with a flamethrower. The Oke flamethrowing tank was named after its designer, Major J.M. ...
, which other tanks could use as a bridge to scale sea-walls or to overcome other obstacles. In some areas, the beaches consisted of a soft clay that could not support the weight of tanks. The "
bobbin A bobbin or spool is a spindle or cylinder, with or without flanges, on which yarn, thread, wire, tape or film is wound. Bobbins are typically found in industrial textile machinery, as well as in sewing machines, fishing reels, tape measure ...
" tank would overcome this problem by deploying a roll of matting over the soft surface and leaving the material in place as a route for more conventional tanks. The
Armoured Vehicle Royal Engineers Armoured Vehicle Royal Engineers (AVRE), also known as Assault Vehicle Royal Engineers is the title given to a series of armoured military engineering vehicles operated by the Royal Engineers (RE) for the purpose of protecting engineers durin ...
(AVREs) were Churchill tanks modified for many combat engineering tasks, including laying bridges; they were armed with a demolition gun that could fire large charges into pillboxes. The Duplex-Drive tank (
DD tank DD or Duplex Drive tanks, nicknamed "Donald Duck tanks", were a type of amphibious swimming tank developed by the British during the Second World War. The phrase is mostly used for the Duplex Drive variant of the M4 Sherman medium tank, that w ...
), another design developed by Hobart's group, was a self-propelled amphibious tank kept afloat using a waterproof canvas screen inflated with compressed air. These tanks were easily swamped, and on D-Day, many sank before reaching the shore, especially at Omaha.


Deception

In the months leading up to the invasion, the Allies conducted
Operation Bodyguard Operation Bodyguard was the code name for a World War II deception strategy employed by the Allied states before the 1944 invasion of northwest Europe. Bodyguard set out an overall stratagem for misleading the Oberkommando der Wehrmacht as to ...
, the overall strategy designed to mislead the Germans as to the date and location of the main Allied landings.
Operation Fortitude Operation Fortitude was the code name for a World War II military deception employed by the Allied nations as part of an overall deception strategy (code named ''Bodyguard'') during the build-up to the 1944 Normandy landings. Fortitude was di ...
included Fortitude North, a misinformation campaign using fake radio-traffic to lead the Germans into expecting an attack on Norway, and Fortitude South, a major deception designed to fool the Germans into believing that the landings would take place at Pas de Calais in July. A fictitious
First U.S. Army Group First United States Army Group (often abbreviated FUSAG) was a fictitious (paper command) Allied Army Group in World War II prior to D-Day, part of Operation Quicksilver, created to deceive the Germans about where the Allies would land in Fran ...
was invented, supposedly located in
Kent Kent is a county in South East England and one of the home counties. It borders Greater London to the north-west, Surrey to the west and East Sussex to the south-west, and Essex to the north across the estuary of the River Thames; it faces ...
and
Sussex Sussex (), from the Old English (), is a historic county in South East England that was formerly an independent medieval Anglo-Saxon kingdom. It is bounded to the west by Hampshire, north by Surrey, northeast by Kent, south by the English ...
under the command of Lieutenant General
George S. Patton George Smith Patton Jr. (November 11, 1885 – December 21, 1945) was a general in the United States Army who commanded the Seventh United States Army in the Mediterranean Theater of World War II, and the Third United States Army in France ...
. The Allies constructed dummy tanks, trucks, and landing craft, and positioned them near the coast. Several military units, including II Canadian Corps and
2nd Canadian Division The 2nd Canadian Division (2 Cdn Div; french: 2e Division du Canada) is a formation of the Canadian Army in the province of Quebec, Canada. The present command was created 2013 when Land Force Quebec Area was re-designated. The main unit housed ...
, moved into the area to bolster the illusion that a large force was gathering there. As well as the broadcast of fake radio-traffic, genuine radio messages from 21st Army Group were first routed to Kent via landline and then broadcast, to give the Germans the impression that most of the Allied troops were stationed there. Patton remained stationed in England until 6 July, thus continuing to deceive the Germans into believing a second attack would take place at Calais. Military and civilian personnel alike were aware of the need for secrecy, and the invasion troops were as much as possible kept isolated, especially in the period immediately before the invasion. One American general was sent back to the United States in disgrace after revealing the invasion date at a party. The Germans thought they had an extensive network of spies operating in the UK, but in fact, all their agents had been captured, and some had become
double agent In the field of counterintelligence, a double agent is an employee of a secret intelligence service for one country, whose primary purpose is to spy on a target organization of another country, but who is now spying on their own country's organi ...
s working for the Allies as part of the
Double-Cross System The Double-Cross System or XX System was a World War II counter-espionage and deception operation of the British Security Service (a civilian organisation usually referred to by its cover title MI5). Nazi agents in Britain – real and false – w ...
. The double agent
Juan Pujol García Juan Pujol García (; 14 February 1912 – 10 October 1988), also known as Joan Pujol i García (), was a Spanish spy who acted as a double agent loyal to Great Britain against Nazi Germany during World War II, when he relocated to Britain t ...
, a Spanish opponent of the Nazis known by the code name "Garbo", developed over the two years leading up to D-Day a fake network of informants that the Germans believed were collecting intelligence on their behalf. In the months preceding D-Day, Pujol sent hundreds of messages to his superiors in Madrid, messages specially prepared by the British intelligence service to convince the Germans that the attack would come in July at Calais. Many of the German radar stations on the French coast were destroyed by the RAF in preparation for the landings. On the night before the invasion, in
Operation Taxable Operations Taxable, Glimmer and Big Drum were tactical military deceptions conducted on 6 June 1944 in support of the Allied landings in Normandy. The operations formed the naval component of Operation Bodyguard, a wider series of tactical a ...
, 617 Squadron (the famous "Dambusters") dropped strips of "window",
metal foil A foil is a very thin sheet of metal, typically made by hammering or rolling.Britannica, The Editors of Encyclopaedia. "foil". Encyclopedia Britannica, 6 Nov. 2008https://www.britannica.com/technology/foil-metallurgy.Accessed 11 September 2022. Fo ...
that German radar operators interpreted as a naval convoy approaching Cap d'Antifer (about 80 km from the actual D-Day landings). The illusion was bolstered by a group of small vessels towing
barrage balloon A barrage balloon is a large uncrewed tethered balloon used to defend ground targets against aircraft attack, by raising aloft steel cables which pose a severe collision risk to aircraft, making the attacker's approach more difficult. Early barra ...
s.
No. 218 Squadron RAF No. 218 Squadron RAF was a squadron of the Royal Air Force. It was also known as No 218 (Gold Coast) Squadron after the Governor of the Gold Coast (modern Ghana) and people of the Gold Coast officially adopted the squadron. History World War I ...
also dropped "window" near
Boulogne-sur-Mer Boulogne-sur-Mer (; pcd, Boulonne-su-Mér; nl, Bonen; la, Gesoriacum or ''Bononia''), often called just Boulogne (, ), is a coastal city in Northern France. It is a sub-prefecture of the department of Pas-de-Calais. Boulogne lies on the ...
in
Operation Glimmer Operations Taxable, Glimmer and Big Drum were tactical military deceptions conducted on 6 June 1944 in support of the Allied landings in Normandy. The operations formed the naval component of Operation Bodyguard, a wider series of tactical a ...
. On the same night, a small group of
Special Air Service The Special Air Service (SAS) is a special forces unit of the British Army. It was founded as a regiment in 1941 by David Stirling and in 1950, it was reconstituted as a corps. The unit specialises in a number of roles including counter-terro ...
(SAS) operators deployed dummy paratroopers over
Le Havre Le Havre (, ; nrf, Lé Hâvre ) is a port city in the Seine-Maritime department in the Normandy region of northern France. It is situated on the right bank of the estuary of the river Seine on the Channel southwest of the Pays de Caux, very cl ...
and Isigny. These dummies led the Germans to believe an additional airborne assault had occurred.


Rehearsals and security

Training exercises for the Overlord landings took place as early as July 1943. As the nearby beach resembled the planned Normandy landing-site, the town of Slapton in Devon, was evacuated in December 1943, and taken over by the armed forces as a site for training exercises that included the use of landing craft and the management of beach obstacles. A
friendly fire In military terminology, friendly fire or fratricide is an attack by belligerent or neutral forces on friendly troops while attempting to attack enemy/hostile targets. Examples include misidentifying the target as hostile, cross-fire while eng ...
incident there on 27 April 1944 resulted in as many as 450 deaths. The following day, an additional estimated 749 American soldiers and sailors died when German torpedo-boats surprised members of Assault Force "U" conducting
Exercise Tiger Exercise Tiger, or Operation Tiger, was one of a series of large-scale rehearsals for the D-Day invasion of Normandy, which took place in April 1944 on Slapton Sands in Devon. Coordination and communication problems resulted in friendly fire ...
. Exercises with landing craft and live ammunition also took place at the Combined Training Centre in
Inveraray Inveraray ( or ; gd, Inbhir Aora meaning "mouth of the Aray") is a town in Argyll and Bute, Scotland. It is on the western shore of Loch Fyne, near its head, and on the A83 road. It is a former royal burgh, the traditional county town of Arg ...
in Scotland. Naval exercises took place in Northern Ireland, and medical teams in London and elsewhere rehearsed how they would handle the expected waves of casualties. Paratroopers conducted exercises, including a huge demonstration drop on 23 March 1944 observed by Churchill, Eisenhower, and other top officials. Allied planners considered tactical surprise to be a necessary element of the plan for the landings. Information on the exact date and location of the landings was provided only to the topmost levels of the armed forces. Men were sealed into their marshalling areas at the end of May, with no further communication with the outside world. Troops were briefed using maps that were correct in every detail except for the place names, and most were not told their actual destination until they were already at sea. A news blackout in Britain increased the effectiveness of the deception operations. Travel to and from the
Republic of Ireland Ireland ( ga, Éire ), also known as the Republic of Ireland (), is a country in north-western Europe consisting of 26 of the 32 counties of the island of Ireland. The capital and largest city is Dublin, on the eastern side of the island. A ...
was banned, and movement within several kilometres of the coast of England restricted.


Weather forecasting

The invasion planners specified a set of conditions regarding the timing of the invasion, deeming only a few days in each month suitable. A full moon was desirable, as it would provide illumination for aircraft pilots and have the highest tides. The Allies wanted to schedule the landings for shortly before dawn, midway between low and high tide, with the tide coming in. This would improve the visibility of obstacles the enemy had placed on the beach while minimising the amount of time the men had to spend exposed in the open. Specific criteria were also set for wind speed, visibility, and cloud cover. Eisenhower had tentatively selected 5 June as the date for the assault, however, on 4 June, conditions were clearly unsuitable for a landing; high winds and heavy seas made it impossible to launch landing craft, and low clouds would prevent aircraft from finding their targets. By the evening of 4 June, the Allied meteorological team, headed by Group Captain
James Stagg Group Captain James Martin Stagg, (30 June 1900 – 23 June 1975) was a Met Office meteorologist attached to the Royal Air Force during the Second World War who notably persuaded General Dwight D. Eisenhower to change the date of the Allied ...
of the
Royal Air Force The Royal Air Force (RAF) is the United Kingdom's air and space force. It was formed towards the end of the First World War on 1 April 1918, becoming the first independent air force in the world, by regrouping the Royal Flying Corps (RFC) and ...
, predicted that the weather would improve sufficiently so that the invasion could go ahead on 6 June. He met Eisenhower and other senior commanders at their headquarters at
Southwick House Southwick House is a Grade II listed 19th-century manor house of the Southwick Estate in Hampshire, England, about north of Portsmouth. It is home to the Defence School of Policing and Guarding, and related military police capabilities. History ...
in Hampshire to discuss the situation. General Montgomery and Major-General
Walter Bedell Smith General Walter Bedell "Beetle" Smith (5 October 1895 – 9 August 1961) was a senior officer of the United States Army who served as General Dwight D. Eisenhower's chief of staff at Allied Forces Headquarters (AFHQ) during the Tunisia Campaign ...
, Eisenhower's chief of staff, were eager to launch the invasion. Admiral Bertram Ramsay was prepared to commit his ships, while Air Chief Marshal Trafford Leigh-Mallory expressed concern that the conditions would be unfavourable for Allied aircraft. After much discussion, Eisenhower decided that the invasion should go ahead. Allied control of the Atlantic meant that German meteorologists did not have access to as much information as the Allies on incoming weather patterns. As the Luftwaffe meteorological centre in Paris predicted two weeks of stormy weather, many
Wehrmacht The ''Wehrmacht'' (, ) were the unified armed forces of Nazi Germany from 1935 to 1945. It consisted of the ''Heer'' (army), the ''Kriegsmarine'' (navy) and the ''Luftwaffe'' (air force). The designation "''Wehrmacht''" replaced the previous ...
commanders left their posts to attend war games in
Rennes Rennes (; br, Roazhon ; Gallo: ''Resnn''; ) is a city in the east of Brittany in northwestern France at the confluence of the Ille and the Vilaine. Rennes is the prefecture of the region of Brittany, as well as the Ille-et-Vilaine department ...
, and men in many units were given leave. Marshal
Erwin Rommel Johannes Erwin Eugen Rommel () (15 November 1891 – 14 October 1944) was a German field marshal during World War II. Popularly known as the Desert Fox (, ), he served in the ''Wehrmacht'' (armed forces) of Nazi Germany, as well as servi ...
returned to Germany for his wife's birthday and to meet Hitler to try to get more Panzers. Had Eisenhower postponed the invasion again, the next available period with the right combination of tides (but without the desirable full moon) was two weeks later, from 18 to 20 June. As it happened, during this period the invaders would have encountered a major storm lasting four days, between 19 and 22 June, that would have made the initial landings impossible.


German preparations and defences

Nazi Germany had at its disposal 50 divisions in France and the Low Countries, with another 18 stationed in Denmark and Norway. Fifteen divisions were in the process of formation in Germany, but there was no strategic reserve. The Calais region was defended by the 15th Army under ''
Generaloberst A ("colonel general") was the second-highest general officer rank in the German ''Reichswehr'' and ''Wehrmacht'', the Austro-Hungarian Common Army, the East Germany, East German National People's Army and in their respective police services. ...
'' (Colonel General)
Hans von Salmuth Hans Eberhard Kurt Freiherr von Salmuth (11 November 1888 – 1 January 1962) was a German general and war criminal during World War II. Salmuth commanded several armies on the Eastern Front, and the Fifteenth Army in France during the D-Day i ...
, and Normandy by the 7th Army commanded by ''Generaloberst''
Friedrich Dollmann Friedrich Karl Albert Dollmann (2 February 188228 June 1944Reynolds, M: ''Steel Inferno'', p. 163. Dell Publishing, 1997.D'Este, C: ''Decision in Normandy'', pp. 241–242. Penguin Books, 2004.) was a German general during World War II who comma ...
. Combat losses throughout the war, particularly on the Eastern Front, meant the Germans no longer had a pool of able young men from which to draw. German soldiers were now on average six years older than their Allied counterparts. Many in the Normandy area were ''
Ostlegionen ''Ostlegionen'' ("eastern legions"), ''Ost-Bataillone'' ("eastern battalions"), ''Osttruppen'' ("eastern troops"), and ''Osteinheiten'' ("eastern units") were units in the Army of Nazi Germany during World War II made up of personnel from the ...
'' (eastern legions)—conscripts and "volunteers" from
Turkestan Turkestan, also spelled Turkistan ( fa, ترکستان, Torkestân, lit=Land of the Turks), is a historical region in Central Asia corresponding to the regions of Transoxiana and Xinjiang. Overview Known as Turan to the Persians, western Turke ...
, Russia, Mongolia, and elsewhere. The Wehrmacht had provided them mainly with unreliable captured equipment; they lacked motorised transport. Formations that arrived later, such as the 12th SS Panzer Division ''Hitlerjugend'', were, for the most part, younger and far better equipped and trained than the static troops stationed along the coast. In early 1944, OB West was significantly weakened by personnel and materiel transfers to the Eastern Front. During the Soviet Dnieper–Carpathian Offensive (24 December 1943 – 17 April 1944), the German High Command was forced to transfer the entire
II SS Panzer Corps The II SS Panzer Corps was a German Waffen-SS armoured corps which saw action on both the Eastern Front (World War II), Eastern and Western Front (World War II), Western Fronts during World War II. It was commanded by Paul Hausser during the Thir ...
from France, consisting of the
9th 9 (nine) is the natural number following and preceding . Evolution of the Arabic digit In the beginning, various Indians wrote a digit 9 similar in shape to the modern closing question mark without the bottom dot. The Kshatrapa, Andhra and ...
and
10th 10 (ten) is the even natural number following 9 and preceding 11. Ten is the base of the decimal numeral system, by far the most common system of denoting numbers in both spoken and written language. It is the first double-digit number. The rea ...
SS Panzer Divisions, as well as the 349th Infantry Division, 507th Heavy Panzer Battalion and the 311th and 322nd StuG Assault Gun Brigades. All told, the German forces stationed in France were deprived of 45,827 troops and 363 tanks, assault guns, and self-propelled anti-tank guns. It was the first major transfer of forces from France to the east since the creation of Führer Directive 51, which no longer allowed any transfers from the west to the east. There were also transfers to the Italian front: von Rundstedt complained that many of his best units had been sent on a "fool's errand" to Italy, saying it was "madness ... that frightful boot of a country should have been evacuated ... we should have held a decent front with a few divisions on the Alpine frontier." The
1st SS Panzer Division Leibstandarte SS Adolf Hitler The 1st SS Panzer Division Leibstandarte SS Adolf Hitler or SS Division Leibstandarte, abbreviated as LSSAH, (german: 1. SS-Panzerdivision "Leibstandarte SS Adolf Hitler") began as Adolf Hitler's personal bodyguard unit, responsible for guardin ...
,
9th 9 (nine) is the natural number following and preceding . Evolution of the Arabic digit In the beginning, various Indians wrote a digit 9 similar in shape to the modern closing question mark without the bottom dot. The Kshatrapa, Andhra and ...
, 11th,
19th 19 (nineteen) is the natural number following 18 and preceding 20. It is a prime number. Mathematics 19 is the eighth prime number, and forms a sexy prime with 13, a twin prime with 17, and a cousin prime with 23. It is the third full re ...
and 116th Panzer divisions, alongside the 2nd SS Panzer Division "Das Reich", had only arrived in March–May 1944 to France for extensive refit after being badly damaged during the Dnieper-Carpathian Offensive. Seven of the eleven panzer or panzergrenadier divisions stationed in France were still not fully operational or only partially mobile in early June 1944.


Atlantic Wall

Alarmed by the raids on
St Nazaire Saint-Nazaire (; ; Gallo: ''Saint-Nazère/Saint-Nazaer'') is a commune in the Loire-Atlantique department in western France, in traditional Brittany. The town has a major harbour on the right bank of the Loire estuary, near the Atlantic Ocean. T ...
and Dieppe in 1942, Hitler ordered the construction of fortifications all along the Atlantic coast, from Spain to Norway, to protect against an expected Allied invasion. He envisioned 15,000 emplacements manned by 300,000 troops, but due to shortages, particularly of concrete and manpower, most of the
strongpoint In military tactics, a strongpoint is a key point in a defensive fighting position which anchors the overall defense line. This may include redoubts, bunkers, pillboxes, trenches or fortresses, alone or in combination; the primary requirement is ...
s were never built. As the expected site of an Allied invasion, Pas de Calais was heavily defended. In the Normandy area the best fortifications were concentrated at the port facilities at Cherbourg and
Saint-Malo Saint-Malo (, , ; Gallo: ; ) is a historic French port in Ille-et-Vilaine, Brittany, on the English Channel coast. The walled city had a long history of piracy, earning much wealth from local extortion and overseas adventures. In 1944, the Alli ...
. A report by Rundstedt to Hitler in October 1943 regarding the weak defences in France led to the appointment of Rommel to oversee the construction of further fortifications along the expected invasion-front, which stretched from the Netherlands to Cherbourg. Rommel was given command of the newly re-formed
Army Group B Army Group B (German: ') was the title of three German Army Groups that saw action during World War II. Operational history Army Group B first took part in the Battle of France in 1940 in Belgium and the Netherlands. The second formation of ...
, which included the 7th Army, the 15th Army, and the forces guarding the Netherlands. Nazi Germany's tangled command structure made it difficult for Rommel to achieve his task. He was not allowed to give orders to the
Organisation Todt Organisation Todt (OT; ) was a civil and military engineering organisation in Nazi Germany from 1933 to 1945, named for its founder, Fritz Todt, an engineer and senior Nazi. The organisation was responsible for a huge range of engineering projec ...
, which was commanded by armaments minister
Albert Speer Berthold Konrad Hermann Albert Speer (; ; 19 March 1905 – 1 September 1981) was a German architect who served as the Minister of Armaments and War Production in Nazi Germany during most of World War II. A close ally of Adolf Hitler, he ...
, so in some places he had to assign soldiers to do construction work. Rommel believed that the Normandy coast could be a possible landing point for the invasion, so he ordered the construction of extensive defensive works along that shore. In addition to concrete gun-emplacements at strategic points along the coast, he ordered wooden stakes, metal tripods, mines, and large anti-tank obstacles to be placed on the beach to delay the approach of landing craft and to impede the movement of tanks. Expecting the Allies to land at high tide so that the infantry would spend less time exposed on the beach, he ordered many of these obstacles to be placed at the high-tide mark. Tangles of barbed wire, booby traps, and the removal of ground cover made the approach hazardous for infantry. On Rommel's order, the number of mines along the coast was tripled. Given the Allied air supremacy (4,029 Allied aircraft assigned to operations in Normandy plus 5,514 aircraft assigned to bombing and defence, versus 570 Luftwaffe planes stationed in France and the Low Countries), booby-trapped stakes known as ''Rommelspargel'' (
Rommel's asparagus Rommel's asparagus (German: ''Rommelspargel'' - the German word ''Spargel'' means '"asparagus"; ) were logs which the Axis placed in the fields and meadows of Normandy to cause damage to the expected invasion of Allied military gliders and paratr ...
) were set up in meadows and fields to deter airborne landings.


Mobile reserves

Rommel, believing that the Germans' best chance was to stop the invasion at the shore, requested that mobile reserves—especially tanks—be stationed as close to the coast as possible. Rundstedt, General
Leo Geyr von Schweppenburg Leo Dietrich Franz Reichsfreiherr Geyr von Schweppenburg (2 March 1886 – 27 January 1974), was a German general during World War II, noted for his pioneering stance and expertise in the field of armoured warfare. He commanded the 5th Panzer Arm ...
(commander of
Panzer Group West 5th Panzer Army (german: 5. Panzerarmee) was the name of two different German armoured warfare, armoured formations during World War II. The first of these was formed in 1942, during the North African campaign and surrendered to the Allies at Tun ...
), and other senior commanders believed that the invasion could not be stopped on the beaches. Geyr argued for a conventional doctrine: keeping the Panzer formations concentrated in a central position around Paris and Rouen and deploying them only when the main Allied beachhead had been identified. Geyr also noted that in the Italian Campaign the armour stationed near the coast had been damaged by naval bombardment. Rommel's opinion was that because of the overwhelming Allied air superiority, large-scale movement of tanks would not be possible once the invasion was underway. Hitler made the final decision: he left three divisions under Geyr's command and gave Rommel operational control of three tank-divisions as reserves. Hitler took personal control of four divisions as strategic reserves, not to be used without his direct orders.


Invasion

By May 1944, 1.5 million American troops had arrived in the United Kingdom. Most were housed in temporary camps in the south-west of England, ready to move across the Channel to the western section of the landing zone. British and Canadian troops were billeted in accommodation further east, spread from
Southampton Southampton () is a port city in the ceremonial county of Hampshire in southern England. It is located approximately south-west of London and west of Portsmouth. The city forms part of the South Hampshire built-up area, which also covers Po ...
to Newhaven, and even on the east coast for men who would be coming across in later waves. A complex system called Movement Control assured that the men and vehicles left on schedule from twenty departure points. Some men had to board their craft nearly a week before departure. The ships met at a rendezvous point (nicknamed "Piccadilly Circus") south-east of the Isle of Wight to assemble into convoys to cross the Channel. Minesweepers began clearing lanes on the evening of 5 June, and a thousand bombers left before dawn to attack the coastal defences. Some 1,200 aircraft departed England just before midnight to transport three airborne divisions to their drop zones behind enemy lines several hours before the beach landings. The American 82nd and
101st Airborne Division The 101st Airborne Division (Air Assault) ("Screaming Eagles") is a light infantry division of the United States Army that specializes in air assault operations. It can plan, coordinate, and execute multiple battalion-size air assault operati ...
s were assigned objectives on the Cotentin Peninsula west of Utah. The
British 6th Airborne Division The 6th Airborne Division was an airborne infantry division of the British Army during the Second World War. Despite its name, the 6th was actually the second of two airborne divisions raised by the British Army during the war, the other being t ...
was assigned to capture intact the bridges over the
Caen Canal Caen (, ; nrf, Kaem) is a commune in northwestern France. It is the prefecture of the department of Calvados. The city proper has 105,512 inhabitants (), while its functional urban area has 470,000,Free French Free France (french: France Libre) was a political entity that claimed to be the legitimate government of France following the dissolution of the Third Republic. Led by French general , Free France was established as a government-in-exile ...
4th
SAS SAS or Sas may refer to: Arts, entertainment, and media * ''SAS'' (novel series), a French book series by Gérard de Villiers * ''Shimmer and Shine'', an American animated children's television series * Southern All Stars, a Japanese rock ba ...
battalion of 538 men was assigned objectives in Brittany (
Operation Dingson Operation Dingson (5–18 June 1944) was an operation in the Second World War, conducted by 178 Free French paratroops of the 4th Special Air Service (SAS), commanded by Colonel Pierre-Louis Bourgoin, who jumped into German occupied France ...
,
Operation Samwest During World War II, Operation Samwest (5–12 June 1944) was a large raid conducted by 116 Free French paratroops of the 4th Special Air Service Regiment. Their objective was to hinder movement of German troops from west Brittany to the Norman ...
). Some 132,000 men were transported by sea on D-Day, and a further 24,000 came by air. Preliminary naval bombardment commenced at 05:45 and continued until 06:25 from five battleships, twenty cruisers, sixty-five destroyers, and two monitors. Infantry began arriving on the beaches at around 06:30.


Beaches

The craft bearing the
U.S. 4th Infantry Division The 4th Infantry Division is a division of the United States Army based at Fort Carson, Colorado. It is composed of a division headquarters battalion, three brigade combat teams (two Stryker and one armor), a combat aviation brigade, a divis ...
assaulting Utah were pushed by the current to a spot about south of their intended landing zone. The troops met light resistance, suffering fewer than 200 casualties. Their efforts to push inland fell far short of their targets for the first day, but they were able to advance about , making contact with the 101st Airborne Division. The airborne landings west of Utah were not very successful, as only ten per cent of the paratroopers landed in their drop zones. Gathering the men together into fighting units was made difficult by a shortage of radios and by the terrain, with its hedgerows, stone walls and marshes. The 82nd Airborne Division captured its primary objective at
Sainte-Mère-Église Sainte-Mère-Église () is a commune in the northwestern French department of Manche, in Normandy. On 1 January 2016, the former communes of Beuzeville-au-Plain, Chef-du-Pont, Écoquenéauville and Foucarville were merged into Sainte-Mère-Églis ...
and worked to protect the western flank. Its failure to capture the river crossings at the River
Merderet The Merderet is a river in Normandy, France, which is tributary to the river Douve. It runs roughly north-south down the middle of the Cotentin peninsula from Valognes to the junction with the Douve at Beuzeville la Bastille. Hydrology The riv ...
resulted in a delay in sealing off the Cotentin Peninsula. The 101st Airborne Division helped protect the southern flank and captured the lock on the River Douve at La Barquette, but did not capture the assigned nearby bridges on the first day. At
Pointe du Hoc La Pointe du Hoc () is a promontory with a cliff overlooking the English Channel on the northwestern coast of Normandy in the Calvados '' department'', France. Pointe du Hoc was the location of a series of German bunkers and machine gun posts. P ...
, the task for the two hundred men of the
2nd Ranger Battalion The 2nd Ranger Battalion, currently based at Joint Base Lewis–McChord south of Seattle, Washington, United States, is the second of three ranger battalions belonging to the United States Army's 75th Ranger Regiment. History World War II For ...
, commanded by Lieutenant Colonel
James Rudder James Earl Rudder (May 6, 1910 – March 23, 1970) was a United States Army major general (United States), major general. As a lieutenant colonel, he commanded the historic Pointe du Hoc battle during the Invasion of Normandy. He also commanded ...
, was to scale the cliffs with ropes and ladders to destroy the gun battery located there. While under fire from above, the men scaled the cliff, only to discover that the guns had already been withdrawn. The Rangers located the weapons, unguarded but ready to use, in an orchard some south of the point, and disabled them. Under attack, the men at the point became isolated, and some were captured. By dawn on D+1, Rudder had only 90 men able to fight. Relief did not come until D+2, when members of the
743rd Tank Battalion The 743rd Tank Battalion was an independent tank battalion that participated in the European Theater of Operations with the United States Army in World War II. It was one of five tank battalions (all independent) which landed in Normandy on D-Day ...
arrived. Omaha, the most heavily defended sector, was assigned to the
U.S. 1st Infantry Division The 1st Infantry Division is a combined arms division of the United States Army, and is the oldest continuously serving division in the Regular Army. It has seen continuous service since its organization in 1917 during World War I. It was offi ...
, supplemented by troops from the
U.S. 29th Infantry Division The 29th Infantry Division (29th ID), also known as the "Blue and Gray Division", is an infantry division of the United States Army based in Fort Belvoir, Virginia. It is currently a formation of the U.S. Army National Guard and contains units ...
. They faced the 352nd Infantry Division, rather than the expected single regiment. Strong currents forced many landing craft east of their intended position or delayed them. Casualties were heavier than all the other landings combined, as the men were subjected to fire from the cliffs above. Problems clearing the beach of obstructions led to the beachmaster calling a halt to further landings of vehicles at 08:30. A group of destroyers arrived around this time to offer supporting artillery fire. Exit from Omaha was possible only via five gullies, and by late morning barely six hundred men had reached the higher ground. By noon, as the artillery fire took its toll and the Germans started to run out of ammunition, the Americans were able to clear some lanes on the beaches. They also started clearing the draws of enemy defences so that vehicles could move off the beach. The tenuous beachhead was expanded over the following days, and the D-Day objectives were accomplished by D+3. At Gold, high winds made conditions difficult for the landing craft, and the amphibious DD tanks were landed close to shore or directly on the beach instead of further out as planned. Aerial attacks had failed to hit the Le Hamel strongpoint, and its 75 mm gun continued to do damage until 16:00. On the western flank, the 1st Battalion,
Hampshire Regiment The Hampshire Regiment was a line infantry regiment of the British Army, created as part of the Childers Reforms in 1881 by the amalgamation of the 37th (North Hampshire) Regiment of Foot and the 67th (South Hampshire) Regiment of Foot. The regi ...
captured
Arromanches Arromanches-les-Bains (; or simply Arromanches) is a commune in the Calvados department in the Normandy region of north-western France. The inhabitants of the commune are known as ''Arromanchais'' or ''Arromanchaises''. Geography Arromanches-les ...
(future site of Mulberry "B"), and contact was made on the eastern flank with the Canadian forces at Juno. Landings of infantry at Juno were delayed because of rough seas, and the men arrived ahead of their supporting armour, suffering many casualties while disembarking. Most of the offshore bombardment had missed the German defences. In spite of these difficulties, the Canadians quickly cleared the beach and created two exits to the villages above. Delays in taking
Bény-sur-Mer Bény-sur-Mer (, literally ''Bény on Sea'') is a commune in the Calvados department in the Normandy region, in northwestern France. It lies 5 km south of Bernières-sur-Mer and 13 km north of Caen. World War II During World War II, ...
led to congestion on the beach, but by nightfall, the contiguous Juno and Gold beachheads covered an area wide and deep. One troop of the 1st Hussar Tank Regiment was the only Allied unit to achieve its objective on the first day of the invasion. Casualties at Juno were 961 men. On Sword, 21 of 25 DD tanks succeeded in getting safely ashore to provide cover for the infantry, who began disembarking at 07:30. They quickly cleared the beach and created several exits for the tanks. In the windy conditions, the tide came in more quickly than expected, making manoeuvring the armour difficult. The 2nd Battalion,
King's Shropshire Light Infantry The King's Shropshire Light Infantry (KSLI) was a light infantry regiment of the British Army, formed in the Childers Reforms of 1881, but with antecedents dating back to 1755. It served in the Second Boer War, World War I and World War II. In 196 ...
advanced on foot to within a few kilometres of Caen, but had to withdraw due to lack of armour support. At 16:00, the
German 21st Panzer Division The 21st Panzer Division was a German armoured division best known for its role in the battles of the North African Campaign from 1941–1943 during World War II when it was one of the two armoured divisions making up the Deutsches Afrikakorps ...
mounted a counterattack between Sword and Juno and nearly succeeded in reaching the coast. They met stiff resistance from the British 3rd Infantry Division and were soon recalled to assist in the area between Caen and Bayeux. The first components of the Mulberry harbours were brought across on D+1 and the structures were in use for unloading by mid-June. One was constructed at Arromanches by the British, the other at Omaha by the Americans. Severe storms on 19 June interrupted the landing of supplies and destroyed the Omaha harbour. The repaired Arromanches harbour was able to receive around 6,000 tons of
materiel Materiel (; ) refers to supplies, equipment, and weapons in military supply-chain management, and typically supplies and equipment in a commercial supply chain context. In a military context, the term ''materiel'' refers either to the specifi ...
daily and was in continuous use for the next ten months, but most shipments were brought in over the beaches until the port of Cherbourg was cleared of mines and obstructions on 16 July. Allied casualties on the first day were at least 10,000, with 4,414 confirmed dead. The Germans lost 1,000 men. The Allied invasion plans had called for the capture of Carentan,
St. Lô ST, St, or St. may refer to: Arts and entertainment * Stanza, in poetry * Suicidal Tendencies, an American heavy metal/hardcore punk band * Star Trek, a science-fiction media franchise * Summa Theologica, a compendium of Catholic philosophy an ...
, Caen, and Bayeux on the first day, with all the beaches (other than Utah), linked with a front line from the beaches; none of these objectives was achieved. The five bridgeheads were not connected until 12 June, by which time the Allies held a front around long and deep. Caen, a major objective, was still in German hands at the end of D-Day and would not be completely captured until 21 July. Nearly 160,000 troops crossed the English Channel on 6 June, and more than two million Allied troops were in France by the end of August.


Cherbourg

In the western part of the lodgement, US troops were to occupy the Cotentin Peninsula, especially Cherbourg, which would provide the Allies with a deep water harbour. The terrain behind Utah and Omaha was characterised by
bocage Bocage (, ) is a terrain of mixed woodland and pasture characteristic of parts of Northern France, Southern England, Ireland, the Netherlands and Northern Germany, in regions where pastoral farming is the dominant land use. ''Bocage'' may als ...
, with thorny hedgerows on embankments high with a ditch on either side. Many areas were additionally protected by rifle pits and machine-gun emplacements. Most of the roads were too narrow for tanks. The Germans had flooded the fields behind Utah with sea water for up to from the coast. German forces on the peninsula included the 91st Infantry Division and the 243rd and 709th Static Infantry Divisions. By D+3 the Allied commanders realised that Cherbourg would not quickly be taken, and decided to cut off the peninsula to prevent any further reinforcements from being brought in. After failed attempts by the inexperienced
90th Infantry Division 90th Division may refer to: ;Infantry * 90th Division (1st Formation)(People's Republic of China), 1949–1950 * 90th Division (2nd Formation)(People's Republic of China), 1950–1952 * 90th Light Infantry Division (Wehrmacht) * 90th Infantry Divi ...
, Major General
J. Lawton Collins General (United States), General Joseph Lawton Collins (May 1, 1896 – September 12, 1987) was a senior United States Army officer. During World War II, he served in both the Asiatic-Pacific Theater, Pacific and European Theater of Operations, U ...
, the
VII Corps 7th Corps, Seventh Corps, or VII Corps may refer to: * VII Corps (Grande Armée), a corps of the Imperial French army during the Napoleonic Wars * VII Corps (German Empire), a unit of the Imperial German Army prior to and during World War I * VII ...
commander, assigned the veteran 9th Infantry Division to the task. They reached the west coast of the Cotentin on 17 June, cutting off Cherbourg. The 9th Division, joined by the 4th and 79th Infantry Divisions, took control of the peninsula in fierce fighting from 19 June; Cherbourg was captured on 26 June. By this time, the Germans had destroyed the port facilities, which were not brought back into full operation until September.


Caen

Fighting in the Caen area versus the 21st Panzer, the 12th SS Panzer Division ''Hitlerjugend'' and other units soon reached a stalemate. During
Operation Perch Operation Perch was a British offensive of the Second World War which took place from 7 to 14 June 1944, during the early stages of the Battle of Normandy. The operation was intended to encircle and seize the German occupied city of Caen, which w ...
, XXX Corps attempted to advance south towards
Mont Pinçon Mont Pinçon is the highest point of the department of Calvados, in Normandy, with an elevation of . It is in the west of Norman Switzerland about to the south-west of Caen, near the village of Plessis-Grimoult. It was the site of many strateg ...
but soon abandoned the direct approach in favour of a
pincer attack The pincer movement, or double envelopment, is a military maneuver in which forces simultaneously attack both flanks (sides) of an enemy formation. This classic maneuver holds an important foothold throughout the history of warfare. The pin ...
to encircle Caen. XXX Corps made a flanking move from
Tilly-sur-Seulles Tilly-sur-Seulles (, literally ''Tilly on Seulles'') is a commune in the Calvados department in the Normandy region in northwestern France. Population Events Each year, the international motocross takes place. See also *Communes of the Cal ...
towards Villers-Bocage with part of the 7th Armoured Division, while I Corps tried to pass Caen to the east. The attack by I Corps was quickly halted and XXX Corps briefly captured Villers-Bocage. Advanced elements of the British force were ambushed, initiating a day-long
Battle of Villers-Bocage The Battle of Villers-Bocage took place during the Second World War on 13 June 1944, one week after the Normandy Landings, which had begun the Western Allies' conquest of German-occupied France. The battle was the result of a British attempt to ...
and then the Battle of the Box. The British were forced to withdraw to Tilly-sur-Seulles. After a delay because of storms from 17 to 23 June,
Operation Epsom Operation Epsom, also known as the First Battle of the Odon, was a British offensive in the Second World War between 26 and 30 June 1944, during the Battle of Normandy. The offensive was intended to outflank and seize the German-occupied city ...
began on 26 June, an attempt by
VIII Corps 8th Corps, Eighth Corps, or VIII Corps may refer to: * VIII Corps (Grande Armée), a unit of the Imperial French army during the Napoleonic Wars * VIII Army Corps (German Confederation) * VIII Corps (German Empire), a unit of the Imperial German Ar ...
to swing around and attack Caen from the south-west and establish a bridgehead south of the
Odon Odon may refer to: ;People * Odon Bacqué, American politician and non-fiction writer * Odon of Greater Poland, duke of Greater Poland * Odon de Pins, Grand Master of the Knights Hospitaller * Jorge Odón, Argentine mechanic and inventor ;Places ...
. Although the operation failed to take Caen, the Germans suffered many tank losses after committing every available Panzer unit to the operation. Rundstedt was dismissed on 1 July and replaced as OB West by Field Marshal
Günther von Kluge Günther Adolf Ferdinand von Kluge (30 October 1882 – 19 August 1944) was a German field marshal during World War II who held commands on both the Eastern and Western Fronts. He commanded the 4th Army of the Wehrmacht during the invasion o ...
after remarking that the war was now lost. The northern suburbs of Caen were bombed on the evening of 7 July and then occupied north of the River Orne in
Operation Charnwood Operation Charnwood was an Anglo-Canadian offensive that took place from 8 to 9 July 1944, during the Battle for Caen, part of the larger Operation Overlord (code-name for the Battle of Normandy) in the Second World War. The operation was int ...
on 8–9 July.
Operation Atlantic Operation Atlantic (18–21 July 1944) was a Canadian offensive during the Battle of Normandy in the Second World War. The offensive, launched in conjunction with Operation Goodwood by the Second Army, was part of operations to seize the French ci ...
and
Operation Goodwood Operation Goodwood was a British offensive during the Second World War, which took place between 18 and 20 July 1944 as part of the larger battle for Caen in Normandy, France. The objective of the operation was a limited attack to the south, ...
captured the rest of Caen and the high ground to the south from 18 to 21 July, by when the city was nearly destroyed. Hitler survived an
assassination attempt This is a list of survivors of assassination attempts, listed chronologically. It does ''not'' include those who were heads of state or government at the time of the assassination attempt. See List of heads of state and government who survived as ...
on 20 July.


Breakout from the beachhead

After securing territory in the Cotentin Peninsula south as far as
Saint-Lô Saint-Lô (, ; br, Sant Lo) is a commune in northwest France, the capital of the Manche department in the region of Normandy.Operation Cobra Operation Cobra was the codename for an Offensive (military), offensive launched by the United States First United States Army, First Army under Lieutenant General Omar Bradley seven weeks after the D-Day landings, during the Invasion of Norman ...
on 25 July and advanced further south to Avranches by 1 August. The British launched
Operation Bluecoat Operation Bluecoat was a British offensive in the Battle of Normandy, from 30 July until 7 August 1944, during the Second World War. The geographical objectives of the attack, undertaken by VIII Corps and XXX Corps of the British Second Army (L ...
on 30 July to secure
Vire Vire () is a town and a former commune in the Calvados department in the Normandy region in northwestern France. On 1 January 2016, it was merged into the new commune of Vire Normandie. Geography The town is located on the river Vire. Much of it ...
and the high ground of Mont Pinçon. Lieutenant General Patton's
U.S. Third Army The United States Army Central, formerly the Third United States Army, commonly referred to as the Third Army and as ARCENT, is a military formation of the United States Army which saw service in World War I and World War II, in the 1991 Gulf Wa ...
, activated on 1 August, quickly took most of Brittany and territory as far south as the
Loire The Loire (, also ; ; oc, Léger, ; la, Liger) is the longest river in France and the 171st longest in the world. With a length of , it drains , more than a fifth of France's land, while its average discharge is only half that of the Rhône ...
, while the First Army maintained pressure eastward toward
Le Mans Le Mans (, ) is a city in northwestern France on the Sarthe River where it meets the Huisne. Traditionally the capital of the province of Maine, it is now the capital of the Sarthe department and the seat of the Roman Catholic diocese of Le Man ...
to protect their flank. By 3 August, Patton and the Third Army were able to leave a small force in Brittany and drive eastward towards the main concentration of German forces south of Caen. Over Kluge's objections, on 4 August Hitler ordered a counter-offensive (
Operation Lüttich Operation Lüttich (7–13 August 1944) was the codename of the Nazi German counter-attack during the Battle of Normandy, which occurred near U.S. positions near Mortain, in northwestern France. ''Lüttich'' is the German name for the city of Liè ...
) from Vire towards Avranches. While
II Canadian Corps II Canadian Corps was a corps-level formation that, along with I Corps (United Kingdom), I (British) Corps (August 1, 1944 to April 1, 1945) and I Canadian Corps (April 6, 1943 to November 1943, and April 1, 1945 until the end of hostilities), ...
pushed south from Caen toward Falaise in
Operation Totalize Operation Totalize (also spelled Operation Totalise in recent British sources) was an offensive launched by Allied troops in the First Canadian Army during the later stages of Operation Overlord, from 8 to 9 August 1944. The intention was to bre ...
on 8 August, Bradley and Montgomery realised that there was an opportunity for the bulk of the German forces to be trapped at Falaise. The Third Army continued the encirclement from the south, reaching
Alençon Alençon (, , ; nrf, Alençoun) is a commune in Normandy, France, capital of the Orne department. It is situated west of Paris. Alençon belongs to the intercommunality of Alençon (with 52,000 people). History The name of Alençon is firs ...
on 11 August. Although Hitler continued to insist until 14 August that his forces should counter-attack, Kluge and his officers began planning a retreat eastward. The German forces were severely hampered by Hitler's insistence on making all major decisions himself, which left his forces without orders for periods as long as 24 hours while information was sent back and forth to the Führer's residence at
Obersalzberg Obersalzberg is a mountainside retreat situated above the market town of Berchtesgaden in Bavaria, Germany. Located about south-east of Munich, close to the border with Austria, it is best known as the site of Adolf Hitler's former mountain resi ...
in Bavaria. On the evening of 12 August, Patton asked Bradley if his forces should continue northward to close the gap and encircle the German forces. Bradley refused because Montgomery had already assigned the First Canadian Army to take the territory from the north. The Canadians met heavy resistance and captured Falaise on 16 August. The gap was closed on 21 August, trapping 50,000 German troops but more than a third of the German 7th Army and the remnants of nine of the eleven Panzer divisions had escaped to the east. Montgomery's decision-making regarding the Falaise Gap was criticised at the time by American commanders, especially Patton, although Bradley was more sympathetic and believed Patton would not have been able to close the gap. The issue has been the subject of much discussion among historians, criticism being levelled at American, British and Canadian forces. Hitler relieved Kluge of his command of OB West on 15 August and replaced him with Field Marshal
Walter Model Otto Moritz Walter Model (; 24 January 1891 – 21 April 1945) was a German field marshal during World War II. Although he was a hard-driving, aggressive panzer commander early in the war, Model became best known as a practitioner of defen ...
. Kluge committed suicide on 19 August after Hitler became aware of his involvement in the 20 July plot. An invasion in southern France (
Operation Dragoon Operation Dragoon (initially Operation Anvil) was the code name for the landing operation of the Allied invasion of Provence (Southern France) on 15August 1944. Despite initially designed to be executed in conjunction with Operation Overlord, th ...
) was launched on 15 August. The French Resistance in Paris rose against the Germans on 19 August. Eisenhower initially wanted to bypass the city to pursue other targets, but amid reports that the citizens were going hungry and Hitler's stated intention to destroy it, de Gaulle insisted that it should be taken immediately. French forces of the 2nd Armoured Division under General
Philippe Leclerc Philippe François Marie Leclerc de Hauteclocque (22 November 1902 – 28 November 1947) was a Free-French general during the Second World War. He became Marshal of France posthumously in 1952, and is known in France simply as le maréchal ...
arrived from the west on 24 August, while the U.S. 4th Infantry Division pressed up from the south. Scattered fighting continued throughout the night, and by the morning of 25 August Paris was liberated. Operations continued in the British and Canadian sectors until the end of the month. On 25 August, the U.S. 2nd Armored Division fought its way into
Elbeuf Elbeuf () is a commune in the Seine-Maritime department in the Normandy region in northern France. Geography A light industrial town situated by the banks of the Seine some south of Rouen at the junction of the D7, D321 and the D313 roads. The c ...
, making contact with British and Canadian armoured divisions. The 2nd Canadian Infantry Division advanced into the Forêt de la Londe on the morning of 27 August. The area was strongly held; the 4th and 6th Canadian brigades suffered many casualties over the course of three days as the Germans fought a delaying action in terrain well suited to defence. The Germans pulled back on 29 August, withdrawing over the Seine the next day. On the afternoon of 30 August, the
3rd Canadian Infantry Division The 3rd Canadian Division is a formation of the Canadian Army responsible for the command and mobilization of all army units in the provinces of Manitoba, Saskatchewan, Alberta and British Columbia, as well as all units extending westwards from th ...
crossed the Seine near Elbeuf and entered
Rouen Rouen (, ; or ) is a city on the River Seine in northern France. It is the prefecture of the Regions of France, region of Normandy (administrative region), Normandy and the Departments of France, department of Seine-Maritime. Formerly one of ...
to a jubilant welcome.


Campaign close

Eisenhower took direct command of all Allied ground forces on 1 September. Concerned about German counter-attacks and the limited materiel arriving in France, he decided to continue operations on a broad front rather than attempting narrow thrusts. The linkup of the Normandy forces with the Allied forces in southern France occurred on 12 September as part of the
drive to the Siegfried Line The Allied advance from Paris to the Rhine, also known as the Siegfried Line campaign, was a phase in the Western European campaign of World War II. This phase spans from the end of the Battle of Normandy, or Operation Overlord, (25 August 1944 ...
. On 17 September, Montgomery launched
Operation Market Garden Operation Market Garden was an Allies of World War II, Allied military operation during the World War II, Second World War fought in the Netherlands from 17 to 27 September 1944. Its objective was to create a Salient (military), salient into G ...
, an unsuccessful attempt by Anglo-American airborne troops to capture bridges in the Netherlands to allow ground forces to cross the
Rhine ), Surselva, Graubünden, Switzerland , source1_coordinates= , source1_elevation = , source2 = Rein Posteriur/Hinterrhein , source2_location = Paradies Glacier, Graubünden, Switzerland , source2_coordinates= , so ...
into Germany. The Allied advance slowed due to German resistance and the lack of supplies (especially fuel). On 16 December the Germans launched the Ardennes Offensive, also known as the
Battle of the Bulge The Battle of the Bulge, also known as the Ardennes Offensive, was the last major German offensive (military), offensive military campaign, campaign on the Western Front (World War II), Western Front during World War II. The battle lasted fr ...
, their last major offensive of the war on the Western Front. A series of successful Soviet actions began with the Vistula–Oder Offensive on 12 January.
Hitler committed suicide Adolf Hitler, Chancellor of Germany#Nazi Germany (1933–1945), chancellor and dictator of Germany from 1933 to 1945, died by suicide via gunshot on 30 April 1945 in the in Berlin after it became clear that Germany would lose the Battle of B ...
on 30 April as Soviet troops neared his ''
Führerbunker The ''Führerbunker'' () was an air raid shelter located near the Reich Chancellery in Berlin, Germany. It was part of a subterranean bunker complex constructed in two phases in 1936 and 1944. It was the last of the Führer Headquarters ( ...
'' in Berlin, and Germany surrendered on 7 May 1945. The Normandy landings were the largest seaborne invasion in history, with nearly 5,000 landing and assault craft, 289 escort vessels, and 277 minesweepers. The opening of another front in western Europe was a tremendous psychological blow for Germany's military, who feared a repetition of the two-front war of World War I. The Normandy landings also heralded the start of the "race for Europe" between the Soviet forces and the Western powers, which some historians consider to be the start of the Cold War. Victory in Normandy stemmed from several factors. German preparations along the Atlantic Wall were only partially finished; shortly before D-Day Rommel reported that construction was only 18 per cent complete in some areas as resources were diverted elsewhere. The deceptions undertaken in Operation Fortitude were successful, leaving the Germans obliged to defend a huge stretch of coastline. The Allies achieved and maintained air superiority, which meant that the Germans were unable to make observations of the preparations underway in Britain and were unable to interfere via bomber attacks. Transport infrastructure in France was severely disrupted by Allied bombers and the French Resistance, making it difficult for the Germans to bring up reinforcements and supplies. Much of the opening artillery barrage was off-target or not concentrated enough to have any impact, but the specialised armour worked well except on Omaha, providing close artillery support for the troops as they disembarked onto the beaches. The indecisiveness and overly complicated command structure of the German high command was also a factor in the Allied success.


Casualties


Allies

From D-Day to 21 August, the Allies landed 2,052,299 men in northern France. The cost of the Normandy campaign was high for both sides. Between 6 June and the end of August, the American armies suffered 124,394 casualties, of whom 20,668 were killed, and 10,128 were missing. Casualties within the First Canadian and Second British Armies are placed at 83,045: 15,995 killed, 57,996 wounded, and 9,054 missing. Of these, Canadian losses amounted to 18,444, with 5,021 killed in action. One in seven Canadian soldiers killed between 6–11 June were killed after surrendering, in a series of executions that would be named the
Normandy Massacres The Normandy massacres were a series of killings in which up to 156 Canadian prisoners of war were murdered by soldiers of the 12th SS Panzer Division (Hitler Youth) during the Battle of Normandy in World War II. The majority of the murders occ ...
. The Allied air forces, having flown 480,317 sorties in support of the invasion, lost 4,101 aircraft and 16,714 airmen (8,536 members of the USAAF, and 8,178 flying under the command of the RAF). The Free French SAS paratroopers suffered 77 killed, with 197 wounded and missing. Allied tank losses have been estimated at around 4,000, with losses split evenly between the American and British/Canadian armies. Historians slightly differ on overall casualties during the campaign, with the lowest losses totaling 225,606 and the highest at 226,386.


Germany

Allied forces in northern France reported the capture of 47,000 Germans in June, 36,000 in July, and 150,000 in August, a total of 233,000 for the three months of Overlord.''SHAEF Weekly Intelligence Summary, No.51'', w.e. March 11 PART I LAND Section H, Miscellaneous 3 Allied Achievements in the West. Around 80,000 German soldiers are buried in Normandy, although this figure does include an unreported number of Germans who died prior to the battle and those who died in captivity after the end of the fighting. German forces in France reported losses of 158,930 men between D-Day and 14 August, just before the start of Operation Dragoon in Southern France. In action at the Falaise pocket, 50,000 men were lost, of whom 10,000 were killed and 40,000 captured. Sources vary on the total German casualties. Niklas Zetterling notes that OB West's figures for summer 1944 in the west (thus including in its scope Operation Dragoon in southern France) amounted to 289,000: 23,019 killed, 67,060 wounded, and 198,616 missing. He states that the record is generally reliable, but also that it might have underestimated losses in some places, such as Cherbourg. Zetterling goes on to estimate specifically German army casualties in the Normandy region specifically from June 6 to August as 210,000; however, he also notes that "the Germans most likely suffered further manpower losses when air or naval bases were overrun. On this no figures have been available for this study." Other sources arrive at higher estimates: 400,000 (200,000 killed or wounded and a further 200,000 captured), 500,000 (290,000 killed or wounded, 210,000 captured), to 530,000 in total. There are no exact figures regarding German tank losses in Normandy. Approximately 2,300 tanks and assault guns were committed to the battle, of which only 100 to 120 crossed the Seine at the end of the campaign. While German forces reported only 481 tanks destroyed between D-day and 31 July, research conducted by No. 2 Operational Research Section of 21st Army Group indicates that the Allies destroyed around 550 tanks in June and July and another 500 in August, for a total of 1,050 tanks destroyed, including 100 destroyed by aircraft. Luftwaffe losses amounted to 2,127 aircraft. By the end of the Normandy campaign, 55 German divisions (42 infantry and 13 panzer) had been rendered combat ineffective; seven of these were disbanded. By September, OB West had only 13 infantry divisions, 3 panzer divisions, and 2 panzer brigades rated as combat effective.


Civilians and French heritage buildings

During the liberation of Normandy, between 13,632 and 19,890 French civilians were killed, and more were seriously wounded. In addition to those who died during the campaign, 11,000 to 19,000 Normans are estimated to have been killed during pre-invasion bombing. A total of 70,000 French civilians were killed throughout the course of the war.
Land mine A land mine is an explosive device concealed under or on the ground and designed to destroy or disable enemy targets, ranging from combatants to vehicles and tanks, as they pass over or near it. Such a device is typically detonated automati ...
s and unexploded ordnance continued to inflict casualties upon the Norman population following the end of the campaign. Prior to the invasion, SHAEF issued instructions (later the basis for the 1954 Hague Convention Protocol I) emphasising the need to limit the destruction to French heritage sites. These sites, named in the Official Civil Affairs Lists of Monuments, were not to be used by troops unless permission was received from the upper echelons of the chain of command. Nevertheless, church spires and other stone buildings throughout the area were damaged or destroyed to prevent them being used by the Germans. Efforts were made to prevent reconstruction workers from using rubble from important ruins to repair roads, and to search for artefacts. The Bayeux Tapestry and other important cultural treasures had been stored at the
Château de Sourches The Château de Sourches is Neoclassical architecture, neoclassical château located in the Communes of France, commune of Saint-Symphorien, Sarthe, Saint-Symphorien, near Le Mans, in the Sarthe Departments of France, department in the Regions of ...
near Le Mans from the start of the war, and survived intact. The occupying German forces also kept a list of protected buildings, but their intent was to keep the facilities in good condition for use as accommodation by German troops. Many cities and towns in Normandy were totally devastated by the fighting and bombings. By the end of the
Battle of Caen The Battle for Caen (June to August 1944) is the name given to fighting between the British Second Army and the German in the Second World War for control of the city of Caen and its vicinity during the larger Battle of Normandy. The battles ...
there remained only 8,000 liveable quarters for a population of over 60,000. Of the 18 listed churches in Caen, four were seriously damaged and five were destroyed, along with 66 other listed monuments. In the
Calvados Calvados (, , ) is a brandy from Normandy in France, made from apples or pears, or from apples with pears. History In France Apple orchards and brewers are mentioned as far back as the 8th century by Charlemagne. The first known record of Norm ...
department (location of the Normandy beachhead), 76,000 citizens were rendered homeless. Of Caen's 210 pre-war Jewish population, only one survived the war. Looting was perpetrated by all sides: the retreating Germans, the invading Allies, and the local French population. Looting was never condoned by Allied forces, and those who were found to be looting were punished.


War memorials and tourism

The beaches of Normandy are still known by their invasion code names. Significant places have plaques, memorials, or small museums, and guide books and maps are available. Some of the German strong points remain preserved; Pointe du Hoc, in particular, is little changed from 1944. The remains of Mulberry harbour B still sits in the sea at Arromanches. Several large cemeteries in the area serve as the final resting place for many of the Allied and German soldiers killed in the Normandy campaign. Above the English channel on a bluff at Omaha Beach, the
Normandy American Cemetery and Memorial The Normandy American Cemetery and Memorial (french: Cimetière américain de Colleville-sur-Mer) is a World War II cemetery and memorial in Colleville-sur-Mer, Normandy, France, that honors American troops who died in Europe during World War II. ...
has hosted numerous visitors each year. The site covers 172.5
acres The acre is a unit of land area used in the imperial and US customary systems. It is traditionally defined as the area of one chain by one furlong (66 by 660 feet), which is exactly equal to 10 square chains, of a square mile, 4,840 square ya ...
and contains the remains of 9,388 American military dead, most of whom were killed during the invasion of Normandy and ensuing military operations in World War II. Included are graves of Army Air Corps crews shot down over France as early as 1942 and four American women.


See also

*
The Battle of Normandy leaders Operation Overlord was the codename for the Battle of Normandy, the Allied operation that launched the successful invasion of German-occupied Western Europe during World War II. The operation was launched on 6 June 1944 (D-Day) with the Norma ...
* British logistics in the Normandy Campaign *
American logistics in the Normandy Campaign American logistics in the Normandy campaign played a key role in the success of Operation Overlord, the Allied invasion of northwest Europe during World War II. The campaign officially commenced on D-Day, 6 June 1944, and ended on 24 July, the d ...
* List of Allied forces in the Normandy Campaign *
Liberation of France The liberation of France in the Second World War was accomplished through diplomacy, politics and the combined military efforts of the Allied Powers of World War II, Allied Powers, Free French forces in London and Africa, as well as the French R ...
*
Operation Downfall Operation Downfall was the proposed Allied plan for the invasion of the Japanese home islands near the end of World War II. The planned operation was canceled when Japan surrendered following the atomic bombings of Hiroshima and Nagasaki, th ...
*
Rhino tank "Rhino tank" (initially called "Rhinoceros") was the American nickname for Allied tanks fitted with "tusks", or bocage cutting devices, during World War II. The British designation for the modifications was Prongs. In the summer of 1944, during t ...


Notes


Citations


References

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Further reading

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External links

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