Operation Diadem
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Operation Diadem
Operation Diadem, also referred to as the Fourth Battle of Monte Cassino or, in Canada, the Battle of the Liri Valley, was an offensive operation undertaken by the Allies of World War II ( U.S. Fifth Army and British Eighth Army) in May 1944, as part of the Italian Campaign of World War II. ''Diadem'' was supported by air attacks called Operation Strangle. The opposing force was the German 10th Army. The object of ''Diadem'' was to break the German defenses on the Gustav Line (the western half of the Winter Line) and open up the Liri Valley, the main route to Rome. General Sir Harold Alexander, Commander-in-Chief of the Allied Armies in Italy, planned ''Diadem'' to coordinate roughly with the invasion of Normandy, so that German forces would be tied down in Italy, and could not be redeployed to France. Four corps were employed in the attack. From right to left these were the Polish II Corps and the British XIII Corps, of the Eighth Army, and the French Corps (including ...
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Winter Line
The Winter Line was a series of German and Italian military fortifications in Italy, constructed during World War II by Organisation Todt and commanded by Albert Kesselring. The series of three lines was designed to defend a western section of Italy, focused around the town of Monte Cassino, through which ran the important Highway 6 which led uninterrupted to Rome. The primary Gustav Line ran across Italy from just north of where the Garigliano River flows into the Tyrrhenian Sea in the west, through the Apennine Mountains to the mouth of the Sangro River on the Adriatic coast in the east. The two subsidiary lines, the Bernhardt Line and the Hitler Line, ran much shorter distances from the Tyrrehnian Sea to just northeast of Cassino where they would merge into the Gustav Line. Relative to the Gustav Line, the Hitler Line stood to the northwest and the Bernhardt Line to the southeast of the primary defenses. Before being ultimately broken, the Gustav Line effectively slo ...
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II Corps (United States)
The II Corps was a corps-sized formation of the United States Army that was active in both World War I and World War II. It was originally formed and fought on the Western Front (World War I), Western Front during World War I and was also the first American formation of any size to see combat in Tunisian Campaign, North Africa or Italian Campaign (World War II), Europe during World War II. History World War I II Corps was organized on 24 February 1918. Initially it consisted of the 27th, 30th, 33rd, 78th and 80th Divisions. In June 1918, the individual divisions of II Corps, which was commanded by Major General George Windle Read, George W. Read, were assigned to British and Australian corps for familiarization training. On 4 July, elements of the 33rd Division (Major General George Bell Jr.) took part in the Battle of Hamel, while attached to the Australian Corps. (The Australian commander, General Sir John Monash, was said to have deliberately chosen the date as a gestur ...
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Rome
Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2,746,984 residents in , Rome is the list of cities in the European Union by population within city limits, third most populous city in the European Union by population within city limits. The Metropolitan City of Rome Capital, with a population of 4,223,885 residents, is the most populous metropolitan cities of Italy, metropolitan city in Italy. Rome metropolitan area, Its metropolitan area is the third-most populous within Italy. Rome is located in the central-western portion of the Italian Peninsula, within Lazio (Latium), along the shores of the Tiber Valley. Vatican City (the smallest country in the world and headquarters of the worldwide Catholic Church under the governance of the Holy See) is an independent country inside the city boun ...
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10th Army (Wehrmacht)
The 10th Army () was a World War II field army of the (Germany). A new 10th Army was activated in 1943 in response to the Allied invasion of Italy. It saw action notably in late 1943 and early 1944 along the " Winter Line" at the Battle of San Pietro Infine and the Battle of Monte Cassino, before finally surrendering near the Alps. Among its troops at Cassino were the XIV Panzer Corps and Parachute divisions of the Luftwaffe. James Holland, ''Italy's Sorrow. A Year of War, 1944–1945'', London, 2008, Harper Press. Commanders See also * 10th Army (German Empire) for the equivalent formation in World War I World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting to ... References * Walter Görlitz, "Reichenau," in Correlli Barnett ed., ''Hitler's Generals'' (New York: Gro ...
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Operation Strangle (World War II)
Operation Strangle was a series of air interdiction operations during the Italian Campaign of World War II by the Allied air forces to interdict German supply routes in Italy north of Rome from 19 March 1944 to 11 May 1944. Its aim was to prevent essential supplies from reaching German forces in Central Italy and compel a German withdrawal. The strategic goal of the air assault was to eliminate or greatly reduce the need for a ground assault on the region. The Allies failed in the overly ambitious objective of the campaign, namely the forced withdrawal of German forces from the Gustav Line, and did not curtail the flow of supplies but the air interdiction seriously complicated the German conduct of defensive operations and played a major role in the success of the subsequent Allied ground assault Operation Diadem. Two principal interdiction lines were maintained across the narrow boot of Italy. This meant that no through trains were able to run from the Po Valley to the fro ...
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Eighth Army (United Kingdom)
The Eighth Army was a field army of the British Army during the Second World War. It was formed as the Western Army on 10 September 1941, in Egypt, before being renamed the Army of the Nile and then the Eighth Army on 26 September. It was created to better control the growing Allied force based in Egypt and to direct its efforts to lift the siege of Tobruk via Operation Crusader. It later directed Allied forces through the remaining engagements of the Western Desert campaign, oversaw part of the Allied effort during the Tunisian campaign and finally led troops throughout the Italian campaign. During 1943, it made up part of the 18th Army Group before being assigned to the 15th Army Group (later, the Allied Armies in Italy). Throughout its campaigns, it was a multi-national force and its units came from Australia, British India, Canada, Czechoslovakia, Cyprus, the Free French Forces, Greece, Newfoundland, New Zealand, Poland, Rhodesia, South Africa, Mauritius, as well a ...
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United States Army North
The United States Army North (ARNORTH) is a formation of the United States Army. An Army Service Component Command (ASCC) subordinate to United States Northern Command (NORTHCOM), ARNORTH is the joint force land component of NORTHCOM.U.S. Army North (15 May 2020) Joint Forces Land Component Command
JFLCC component of NORTHCOM
ARNORTH is responsible for homeland defense and defense support of civil authorities. ARNORTH is headquartered at , . Redesignated ARNORTH in 2004, it was first activated ...
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Allies Of World War II
The Allies, formally referred to as the United Nations from 1942, were an international Coalition#Military, military coalition formed during World War II (1939–1945) to oppose the Axis powers. Its principal members were the "Four Policemen, Big Four" – the United Kingdom, United States, Soviet Union, and Republic of China (1912–1949), China. Membership in the Allies varied during the course of the war. When the conflict broke out on 1 September 1939, the Allied coalition consisted of the United Kingdom, French Third Republic, France, and Second Polish Republic, Poland, as well as their respective Dependent territory, dependencies, such as British Raj, British India. They were joined by the independent dominions of the British Commonwealth: Canada, Australia, Dominion of New Zealand, New Zealand and Union of South Africa, South Africa. Consequently, the initial alliance resembled Allies of World War I, that of the First World War. As Axis forces began German invasion of ...
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Canada
Canada is a country in North America. Its Provinces and territories of Canada, ten provinces and three territories extend from the Atlantic Ocean to the Pacific Ocean and northward into the Arctic Ocean, making it the world's List of countries and dependencies by area, second-largest country by total area, with the List of countries by length of coastline, world's longest coastline. Its Canada–United States border, border with the United States is the world's longest international land border. The country is characterized by a wide range of both Temperature in Canada, meteorologic and Geography of Canada, geological regions. With Population of Canada, a population of over 41million people, it has widely varying population densities, with the majority residing in List of the largest population centres in Canada, urban areas and large areas of the country being sparsely populated. Canada's capital is Ottawa and List of census metropolitan areas and agglomerations in Canada, ...
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Battle Of Monte Cassino
The Battle of Monte Cassino, also known as the Battle for Rome, was a series of four military assaults by the Allies of World War II, Allies against Nazi Germany, German forces in Kingdom of Italy, Italy during the Italian Campaign (World War II), Italian Campaign of World War II. The objective was to break through the Winter Line and facilitate an advance towards Rome. In the beginning of 1944, the western half of the Winter Line was anchored by German forces holding the Rapido (river), Rapido-Gari (river), Gari, Liri, and Garigliano valleys and several surrounding peaks and ridges. Together, these features formed the Winter Line, Gustav Line. Monte Cassino, a historic hilltop abbey founded in 529 by Benedict of Nursia, dominated the nearby town of Cassino and the entrances to the Liri and Rapido valleys. Lying in a protected historic zone, it had been left unoccupied by the Germans, although they manned some positions set into the slopes below the abbey's walls. Repeated art ...
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LXXVI Panzer Corps
The LXXVI Panzer Corps (''LXXVI Panzerkorps'', 76th Armoured Corps) was a panzer corps of Nazi Germany during World War II. The headquarters were formed in France under Army Group D on 29 June 1943 as LXXVI Army Corps but renamed a month later. In August it shipped to Italy to become part of 10th Army. It spent the rest of the war in Italy fighting in the Italian Campaign mainly under 10th Army but with short periods from February 1944 ( Battle of Anzio) and January 1945 (Spring 1945 offensive in Italy) under 14th Army. The Corps was commanded for most of its active fighting by General Traugott Herr. Order of battle In 1943 the corps included: * 1st Parachute Division * 26th Panzer Division * 65th Infantry Division * 90th Panzergrenadier Division On 25 August 1944 the composition of the corps was:, (Appendix B). * 1st Parachute Division * 278th Infantry Division * 71st Infantry Division * 5th Mountain Division * 162nd Turkestan Division Commanding officers *Lieutena ...
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LI Mountain Corps (Wehrmacht)
__NOTOC__The LI Mountain Corps was a German military formation in World War II. History The LI Mountain Corps was formed on 15 August 1943 at Vienna in Wehrkreis XVII. Its staff came from the LI Army Corps, which had been destroyed in the Battle of Stalingrad. The unit fought in Italy and participated in the Fourth Battle of Monte Cassino (May 1944), on the Trasimene Line (June 1944), on the Gothic Line (August 1944 - March 1945) and in Operation Grapeshot (April 1945). It surrendered at Brescia Brescia (, ; ; or ; ) is a city and (municipality) in the region of Lombardy, in Italy. It is situated at the foot of the Alps, a few kilometers from the lakes Lake Garda, Garda and Lake Iseo, Iseo. With a population of 199,949, it is the se ... in May 1945. Commanders * General of Mountain troops Valentin Feurstein (25 August 1943 - January 1945) * General of the Artillery Friedrich-Wilhelm Hauck (January 1945 - 8 May 1945) Sources LI. Gebirgs-Armeekorps sur lexikon-d ...
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