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The M3 Lee, officially Medium Tank, M3, was an American
medium tank A medium tank is a classification of tanks, particularly prevalent during World War II which represented a compromise between the mobility oriented light tanks and the armour and armament oriented heavy tanks. A medium tank's classification is ...
used 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 World War II by country, vast majority of the world's countries—including all of the great power ...
. The turret was produced in two forms, one for US needs and one modified to British requirements to place the radio next to the commander. In
British Commonwealth The Commonwealth of Nations, simply referred to as the Commonwealth, is a political association of 56 member states, the vast majority of which are former territories of the British Empire. The chief institutions of the organisation are the Co ...
service, the tank was called by two names: tanks employing US pattern
turrets Turret may refer to: * Turret (architecture), a small tower that projects above the wall of a building * Gun turret, a mechanism of a projectile-firing weapon * Objective turret, an indexable holder of multiple lenses in an optical microscope * M ...
were called "Lee," named after Confederate general
Robert E. Lee Robert Edward Lee (January 19, 1807 – October 12, 1870) was a Confederate general during the American Civil War, towards the end of which he was appointed the overall commander of the Confederate States Army. He led the Army of Nor ...
, while those with British pattern turrets were known as "Grant," named after Union general
Ulysses S. Grant Ulysses S. Grant (born Hiram Ulysses Grant ; April 27, 1822July 23, 1885) was an American military officer and politician who served as the 18th president of the United States from 1869 to 1877. As Commanding General, he led the Union A ...
. Design commenced in July 1940, and the first M3s were operational in late 1941. The US Army needed a medium tank armed with a 75mm gun and, coupled with the United Kingdom's immediate demand for 3,650 medium tanks, the Lee began production by late 1940. The design was a compromise meant to produce a tank as soon as possible. The M3 had considerable firepower and good armor, but had serious drawbacks in its general design and shape, including a high silhouette, an archaic
sponson Sponsons are projections extending from the sides of land vehicles, aircraft or watercraft to provide protection, stability, storage locations, mounting points for weapons or other devices, or equipment housing. Watercraft On watercraft, a spon ...
mounting of the main gun preventing the tank from taking a
hull-down In sailing and warfare, hull-down means that the upper part of a vessel or vehicle is visible, but the main, lower body (hull) is not; the term hull-up means that all of the body is visible. The terms originated with sailing and naval warfare i ...
position, riveted construction, and poor off-road performance. Its overall performance was not satisfactory and the tank was withdrawn from combat in most theaters as soon as the
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It ...
tank became available in larger numbers. In spite of this, it was considered by
Hans von Luck Hans–Ulrich Freiherr von Luck und Witten (15 July 1911 – 1 August 1997), usually shortened to Hans von Luck, was a German officer in the Wehrmacht of Nazi Germany during World War II. Luck served with the 7th Panzer Division and 21st Panze ...
(an ''
Oberst ''Oberst'' () is a senior field officer rank in several German-speaking and Scandinavian countries, equivalent to colonel. It is currently used by both the ground and air forces of Austria, Germany, Switzerland, Denmark, and Norway. The Swedish ...
'' (Colonel) in the ''Wehrmacht Heer'' and the author of ''Panzer Commander'') to be superior to the best German tank at the time of its introduction, the
Panzer IV The ''Panzerkampfwagen'' IV (Pz.Kpfw. IV), commonly known as the ''Panzer'' IV, was a German medium tank developed in the late 1930s and used extensively during the Second World War. Its ordnance inventory designation was Sd.Kfz. 161. The Panz ...
(at least until the F2 variant). Despite being replaced elsewhere, the British continued to use M3s in combat against the Japanese in
southeast Asia Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical south-eastern region of Asia, consisting of the regions that are situated south of mainland ...
until 1945. Nearly a thousand M3s were supplied to the Soviet military under
Lend-Lease Lend-Lease, formally the Lend-Lease Act and introduced as An Act to Promote the Defense of the United States (), was a policy under which the United States supplied the United Kingdom, the Soviet Union and other Allied nations with food, oil, ...
between 1941 and 1943.


Development

In , the
U.S. Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cl ...
possessed approximately 400 tanks, mostly M2 Light Tanks, with 18 of the to-be-discontinued M2 Medium Tanks as the only ones considered "modern." The U.S. funded tank development poorly during the interwar years, and had little experience in design as well as poor doctrine to guide design efforts. The M2 Medium Tank was typical of
armored fighting vehicle An armoured fighting vehicle (AFV) is an armed combat vehicle protected by armour, generally combining operational mobility with offensive and defensive capabilities. AFVs can be wheeled or tracked. Examples of AFVs are tanks, armoured cars, ...
s (AFVs) many nations produced in 1939. When the U.S. entered the war, the M2 design was already obsolete with a 37 mm gun, an impractical number of secondary machine guns, a very high silhouette, and frontal armor. The
Panzer III The ''Panzerkampfwagen III'', commonly known as the Panzer III, was a medium tank developed in the 1930s by Germany, and was used extensively in World War II. The official German ordnance designation was Sd.Kfz. 141. It was intended to fight ot ...
and
Panzer IV The ''Panzerkampfwagen'' IV (Pz.Kpfw. IV), commonly known as the ''Panzer'' IV, was a German medium tank developed in the late 1930s and used extensively during the Second World War. Its ordnance inventory designation was Sd.Kfz. 161. The Panz ...
's success in the French campaign led the U.S. Army to immediately order a new medium tank armed with a 75 mm gun in a turret as a response. This would be the M4 Sherman but until the Sherman reached production, an interim design with a 75 mm gun was urgently needed. The M3 was the solution. The design was unusual because the main weapon – a larger caliber, medium-velocity 75 mm gun – was in an offset
sponson Sponsons are projections extending from the sides of land vehicles, aircraft or watercraft to provide protection, stability, storage locations, mounting points for weapons or other devices, or equipment housing. Watercraft On watercraft, a spon ...
mounted in the hull with limited traverse. The sponson mount was necessary because, at the time, American tank plants did not have the design experience necessary to make a gun turret capable of holding a 75 mm weapon. A small turret with a lighter, high-velocity 37 mm gun sat on top of the tall hull. A small cupola on top of the turret held a
machine gun A machine gun is a fully automatic, rifled autoloading firearm designed for sustained direct fire with rifle cartridges. Other automatic firearms such as automatic shotguns and automatic rifles (including assault rifles and battle rifles ...
. The use of two main guns was seen on the French
Char B1 The Char B1 was a French heavy tank manufactured before World War II. The Char B1 was a specialised break-through vehicle, originally conceived as a self-propelled gun with a 75 mm howitzer in the hull; later a 47 mm gun in a turre ...
and the Mark I version of the
British British may refer to: Peoples, culture, and language * British people, nationals or natives of the United Kingdom, British Overseas Territories, and Crown Dependencies. ** Britishness, the British identity and common culture * British English, ...
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, ...
. In the French tank, it had been designed as a self-propelled gun to attack fortifications and an anti-tank capability had been added through a second gun in a small turret; the Churchill carried a gun in the front hull to fire chiefly smoke shells. The M3 differed slightly from this pattern, having a dual-purpose main gun that could fire an armor-piercing projectile at a velocity high enough for effectively piercing armor, as well as deliver a high-explosive shell that was large enough to be effective. Using a hull mounted gun, the M3 design could be produced faster than a tank with the same gun in a turret. It was understood that the M3 design was flawed, but Britain urgently needed tanks. A drawback of the sponson mount was that the M3 could not take a
hull-down In sailing and warfare, hull-down means that the upper part of a vessel or vehicle is visible, but the main, lower body (hull) is not; the term hull-up means that all of the body is visible. The terms originated with sailing and naval warfare i ...
position and use its 75 mm gun at the same time. The M3 was tall and roomy: the power transmission ran through the crew compartment under the turret basket to the gearbox driving the front sprockets. Steering was by differential braking, with a turning circle of . The vertical volute-sprung suspension (VVSS) units possessed a return roller mounted directly atop the main housing of each of the six suspension units (three per side), designed as self-contained and readily replaced modular units bolted to the hull sides. The turret was power-traversed by an electro-hydraulic system in the form of an electric motor providing the pressure for the hydraulic motor. This fully rotated the turret in 15 seconds. Control was from a spade grip on the gun. The same motor provided pressure for the gun stabilizing system. The 75 mm gun was operated by a gunner and a loader; sighting the gun used an M1 periscope – with an integral telescope – on the top of the sponson. The periscope rotated with the gun. The sight was marked from zero to , with vertical markings to aid deflection shooting at a moving target. The gunner laid the gun on target through geared handwheels for traverse (15° to left and to right) and elevation ( +20° to -9°). The shorter barreled 75 mm M2 cannon sometimes featured a counterweight at the end of the barrel to balance the gun for operation with the gyrostabilizer until the longer 75 mm M3 variant was brought into use. The 37 mm gun was aimed through the M2 periscope, mounted in the mantlet to the side of the gun. It also sighted the coaxial machine gun. Two range scales were provided: 0– for the 37 mm and 0– for the machine gun. The 37 mm gun also featured a counterweight – a long rod under the barrel – though it was ill maintained by crews who knew little about its use. There were also two .30-06 Browning M1919A4 machine guns mounted in the hull, fixed in traverse but adjustable in elevation, which were controlled by the driver. These were, due to coordination issues, removed, though they would be seen on early Sherman tanks. Though not at war, the U.S. was willing to produce, sell and ship munitions including armored vehicles to Britain. The British had requested that their Matilda II infantry tank and Crusader cruiser tank designs be made by American factories, but this request was refused. With much of their equipment left on the beaches near Dunkirk, the equipment needs of the British were acute. Though not entirely satisfied with the design, they ordered the M3 in large numbers. British experts had viewed the mock-up in 1940 and identified features that they considered flaws – the high profile, the hull mounted main gun, the lack of a radio in the turret (though the tank did have a radio down in the hull), the riveted armor plating (whose rivets tended to pop off inside the interior in a deadly ricochet when the tank was hit by a non-penetrating round), the smooth track design, insufficient armor plating and lack of splash-proofing of the joints. The British desired modifications for the tank they were purchasing. A
bustle rack A bustle rack is a type of storage bin mounted on combat vehicles, usually on the sides and/or rear of the turret. These racks are used to carry extra gear and supplies for the vehicle in the field, as well as give the crew a place to store their ...
was to be made at the back of the turret to house the
Wireless Set No. 19 The Wireless Set No. 19 was a Second World War mobile radio transceiver designed for use by armoured troops of the British Army. First introduced in 1940, the No. 19 began to replace the pre-war Wireless Set No. 11. Two modified versions were in ...
. The turret was to be given thicker armor plate than in the original U.S. design, and the machine gun cupola was to be replaced with a simple hatch. Extended space within the turret of the new M3 also allowed the use of a smoke bomb launcher, although the addition of the radio would take the space for storage of fifty 37 mm rounds, reducing the ammunition capacity to 128 rounds. Several of these new "Grant" tanks would also be equipped with sand shields for action in North Africa, though they often fell off. With these modifications accepted the British ordered 2,000 Grants, although only 1,685 were built. Contracts were arranged with 4 US companies for 500 tanks each: Baldwin Locomotive Co, Pullman Standard Car Co, Pressed Steel Car Co and Lima Locomotive Co. The total cost of the orders was approximately US$240 million, including funds for factory re-tooling. That was the total of all UK Government funds held in the US; it took the US Lend-Lease act to solve the financial shortfall and fund future equipment orders. The order with Baldwin was later increased from 500 to 685. Lima did not produce a single Grant against their contract as it took them so long to complete steam locomotives in production to create factory space and to tool-up that M3 production was winding down before they were ready. It was therefore agreed that they would supply 500 of the new M4 Sherman instead. Lima actually undertook the T6/M4 development while they were unable to manufacture the Grant and as the other companies were all too busy, and became the first company to begin producing the M4 in March 1942 with the M4A1. The first 28 M4A1s were British contract tanks as Grant replacements but the remainder of the order was subsumed into Lend-Lease. The prototype was completed in March 1941 and production models followed, with the first British-specification tanks produced in July. Both U.S. and British tanks had thicker armor than first planned. The British design required one fewer crew member than the US version due to the radio in the turret. The U.S. eventually eliminated the full-time radio operator, assigning the task to the driver. After extensive losses in Africa and Greece, the British realized that to meet their needs for tanks, both the Lee and the Grant types would need to be accepted. The U.S. military used the "M" (Model) letter to designate nearly all of their equipment. When the British Army received their new M3 medium tanks from the US, confusion immediately set in between the different M3 medium tank and M3 light tank. The British Army began naming their American tanks after American military figures, although the U.S. Army never used those terms until after the war. M3 tanks with the cast turret and radio setup received the name "General Grant", while the original M3s were called "General Lee", or more usually just "Grant" and "Lee". The chassis and running gear of the M3 design was adapted by the Canadians for their
Ram tank The Tank, Cruiser, Ram was a cruiser tank designed and built by Canada in the Second World War, based on the U.S. M3 Medium tank chassis. Due to standardization on the American Sherman tank for frontline units, it was used exclusively for tra ...
. The hull of the M3 was also used for self-propelled
artillery Artillery is a class of heavy military ranged weapons that launch munitions far beyond the range and power of infantry firearms. Early artillery development focused on the ability to breach defensive walls and fortifications during si ...
as with the original design of the
M7 Priest The 105 mm Howitzer Motor Carriage M7 was an American self-propelled gun vehicle produced during World War II. It was given the official service name 105 mm Self Propelled Gun, Priest by the British Army, due to the pulpit-like machine ...
, of which nearly 3,500 were built, and recovery vehicles.


Production


Operational history

Of the 6,258 M3 variants manufactured 2,887 (45%) were supplied to the British government for use by British and Commonwealth forces. 1,685 of these were Grants which the UK ordered directly from US industry for cash and which did not fall under the Lend-Lease arrangements. The M3 Grant first saw action with the
Royal Armoured Corps The Royal Armoured Corps is the component of the British Army, that together with the Household Cavalry provides its armour capability, with vehicles such as the Challenger 2 Tank and the Scimitar Reconnaissance Vehicle. It includes most of the ...
in North Africa during the Gazala battles of May 1942. However, with the arrival of the M4 Sherman tank from October 1942 the surviving M3s in North Africa became surplus and were mostly shipped on to India. 657 Grants and 75 Lees were supplied directly to N Africa. 97 Grants and 119 M3 Lees - including 49 diesel M3A3 Lee V, the only diesel Lees used by UK and Commonwealth forces - were supplied directly to the UK and were used for testing and training. 335 were later converted to Canal Defence Lights (no diesels), and further refurbished turretless M3 hulls were supplied by the US to support this project. * 777 were supplied directly to the
Australian Army The Australian Army is the principal land warfare force of Australia, a part of the Australian Defence Force (ADF) along with the Royal Australian Navy and the Royal Australian Air Force. The Army is commanded by the Chief of Army (CA), who ...
for home defence and training duties in Australia. None were used operationally. These comprised 255 Lee I, 266 Grant I and 232 Grant II. * The British
Indian Army The Indian Army is the Land warfare, land-based branch and the largest component of the Indian Armed Forces. The President of India is the Commander-in-Chief, Supreme Commander of the Indian Army, and its professional head is the Chief of Arm ...
received 896 M3 series tanks as new supply and tanks shipped from North Africa. These comprised 517 Lee I and 379 Grant I. * A further 1,386 were exported to the
Soviet Union The Soviet Union,. officially the Union of Soviet Socialist Republics. (USSR),. was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen nationa ...
, although only 957 of these reached Russian ports due to German U-boat and air attacks on Allied convoys.Lend-Lease tanks and aircrafts [sic]
/ref>


North African campaign

The M3 brought much-needed firepower to British forces in the North African desert campaign. Early Grants were shipped directly to Egypt and lacked some fitments (such as radio) that were remedied locally. Under the "Mechanisation Experimental Establishment (Middle East)" other modifications were tested approved and made to tanks as they were issued. These included fitting of sandshields (later deliveries from the US had factory fitted shields), dust covers for the gun mantlets and the removal of the hull machine guns. Ammunition stowage was altered to 80 75 mm (up from 50) and 80 37 mm with additional protection to the ammunition bins. The M3 tank's first action during the war was in , during the North African Campaign. British Lees and Grants were in action against Rommel's forces at the
Battle of Gazala The Battle of Gazala (near the village of ) was fought during the Western Desert Campaign of the Second World War, west of the port of Tobruk in Libya, from 26 May to 21 June 1942. Axis troops of the ( Erwin Rommel) consisting of German an ...
on 27 May that year. The
8th King's Royal Irish Hussars The 8th King's Royal Irish Hussars was a cavalry regiment in the British Army, first raised in 1693. It saw service for three centuries including the First and Second World Wars. The regiment survived the immediate post-war reduction in forces ...
, 3rd and 5th battalions
Royal Tank Regiment The Royal Tank Regiment (RTR) is the oldest tank unit in the world, being formed by the British Army in 1916 during the First World War. Today, it is the armoured regiment of the British Army's 12th Armoured Infantry Brigade. Formerly known as t ...
going into action with Grant tanks. Retreating in the face of a large attack, the 8th Hussars had only three of their Grants remaining, while 3rd RTR reported losing 16 Grants. Their appearance was a surprise to the Germans, who were unprepared for the M3's 75 mm gun. They soon discovered the M3 could engage them beyond the effective range of their 5 cm Pak 38 anti-tank gun, and the 5 cm KwK 39 of the
Panzer III The ''Panzerkampfwagen III'', commonly known as the Panzer III, was a medium tank developed in the 1930s by Germany, and was used extensively in World War II. The official German ordnance designation was Sd.Kfz. 141. It was intended to fight ot ...
, their main medium tank. The M3 was also vastly superior to the
Fiat M13/40 The Carro Armato M13/40 was an Italian World War II tank designed to replace the M11/39 in the Italian Army at the start of World War II. It was the primary tank used by the Italians throughout the war. The design was influenced by the British Vi ...
and M14/41 tanks employed by the Italian troops, whose 47 mm gun was effective only at point-blank range, while only the few Semoventi ''da'' 75/18 self-propelled guns were able to destroy it using
HEAT In thermodynamics, heat is defined as the form of energy crossing the boundary of a thermodynamic system by virtue of a temperature difference across the boundary. A thermodynamic system does not ''contain'' heat. Nevertheless, the term is ...
rounds. In addition to the M3's superior range, they were equipped with high explosive shells to take out infantry and other soft targets, which previous British tanks lacked; upon the introduction of the M3, Rommel noted: "Up to May of 1942, our tanks had in general been superior in quality to the corresponding British types. This was now no longer true, at least not to the same extent." Despite the M3's advantages and surprise appearance during the Battle of Gazala, it could not win the battle for the British. In particular, the high-velocity 88 mm Flak gun, adapted as an anti-tank gun, proved deadly if British tanks attacked without artillery support. Britain's Director of Armoured Fighting Vehicles nonetheless said before the M4 Sherman arrived that "The Grants and the Lees have proven to be the mainstay of the fighting forces in the Middle East; their great reliability, powerful armament and sound armor have endeared them to the troops." Grants and Lees served with British units in North Africa until the end of the campaign. Following
Operation Torch Operation Torch (8 November 1942 – 16 November 1942) was an Allied invasion of French North Africa during the Second World War. Torch was a compromise operation that met the British objective of securing victory in North Africa while al ...
(the invasion of French North Africa), the U.S. also fought in North Africa using the M3 Lee. The US 1st Armored Division had been issued new M4 Shermans, but had to give up one regiment's worth to the British Army prior to the
Second Battle of El Alamein The Second Battle of El Alamein (23 October – 11 November 1942) was a battle of the Second World War that took place near the Egyptian railway halt of El Alamein. The First Battle of El Alamein and the Battle of Alam el Halfa had prevented th ...
. Consequently, a regiment of the division was still using the M3 Lee in North Africa. The M3 was generally appreciated during the North African campaign for its mechanical reliability, good armor protection, and heavy firepower. In all three aspects, the M3 was capable of engaging German tanks and towed
anti-tank Anti-tank warfare originated from the need to develop technology and tactics to destroy tanks during World War I. Since the Triple Entente deployed the first tanks in 1916, the German Empire developed the first anti-tank weapons. The first dev ...
guns. However, the high silhouette and low, hull-mounted 75 mm were tactical drawbacks since they prevented fighting from a
hull-down In sailing and warfare, hull-down means that the upper part of a vessel or vehicle is visible, but the main, lower body (hull) is not; the term hull-up means that all of the body is visible. The terms originated with sailing and naval warfare i ...
firing position. In addition, the use of riveted hull superstructure armor on the early versions led to
spalling Spall are fragments of a material that are broken off a larger solid body. It can be produced by a variety of mechanisms, including as a result of projectile impact, corrosion, weathering, cavitation, or excessive rolling pressure (as in a ba ...
, where the impact of enemy shells caused the rivets to break off and become projectiles inside the tank. Later models were built with all-welded armor to eliminate this problem. These lessons had already been applied to the design and production of the M4. The M3 was replaced in front-line roles by the
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It ...
as soon as the M4 was available. However, several specialist vehicles based on the M3 were later employed in Europe, such as the M31 armored recovery vehicle and the
Canal Defence Light The Canal Defence Light (CDL) was a British "secret weapon" of the Second World War, based upon the use of a powerful carbon-arc searchlight mounted on a tank. It was intended to be used during night-time attacks, when the light would allow ene ...
.


Eastern Europe—Soviet service

Beginning from 1941, 1,386 M3 medium tanks were shipped from the US to the Soviet Union, with 417 lost during shipping (when they went down with their transporting vessels which were lost to German submarine, naval and aerial attacks en route). These were supplied through the American
Lend-Lease Lend-Lease, formally the Lend-Lease Act and introduced as An Act to Promote the Defense of the United States (), was a policy under which the United States supplied the United Kingdom, the Soviet Union and other Allied nations with food, oil, ...
program between 1942 and 1943. Like British Commonwealth units, Soviet Red Army personnel tended to refer to the M3 as the "Grant", even though all of the M3s shipped to Russia were "Lee" variants. The official Soviet designation for it was the ''М3 средний'' (''М3с''), or "M3 Medium", to distinguish the Lee from the US-built
M3 Stuart The M3 Stuart/Light Tank M3, was an American light tank of World War II. An improved version of the tank entered service as the M5 in 1942 to be supplied to British and other Commonwealth forces under lend-lease prior to the entry of the U.S. i ...
light tank, which was also acquired by the USSR under Lend-Lease and was officially known there as the ''М3 лёгкий'' (''М3л''), or "M3 Light". Due to the vehicle's petrol-fuelled engine, a high tendency to catch fire, and its vulnerability against most types of German armour the Soviet troops encountered from 1942 onwards, the tank was almost entirely unpopular with the Red Army since its induction into the Eastern Front. With almost 1,500 of their own
T-34 The T-34 is a Soviet medium tank introduced in 1940. When introduced its 76.2 mm (3 in) tank gun was less powerful than its contemporaries while its 60-degree sloped armour provided good protection against anti-tank weapons. The C ...
tanks being built every month, Soviet use of the M3 medium tank declined soon after mid-1943. Soviet troops still fielded their Lee/Grant tanks on secondary and quieter/less-action fronts, such as in the Arctic region during the Red Army's Petsamo–Kirkenes Offensive against German forces in Norway in October 1944, where the obsolete US tanks faced mainly captured French tanks used by the Germans, such as the
SOMUA S35 The SOMUA S35 was a French cavalry tank of the Second World War. Built from 1936 until 1940 to equip the armoured divisions of the Cavalry, it was for its time a relatively agile medium-weight tank, superior in armour and armament to its Frenc ...
, which to a limited extent was somewhat comparable to the Lee/Grant it fought against.


Pacific War

In the
Pacific War The Pacific War, sometimes called the Asia–Pacific War, was the theater of World War II that was fought in Asia, the Pacific Ocean, the Indian Ocean, and Oceania. It was geographically the largest theater of the war, including the vas ...
, armored warfare played a relatively minor role for the Allies as well as for the Japanese, compared with that of naval, air, and infantry units. In the
Pacific Ocean Theater The Pacific Ocean is the largest and deepest of Earth's five oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south, and is bounded by the continen ...
and the
Southwest Pacific Theater The South West Pacific theatre, during World War II, was a major theatre of the war between the Allies and the Axis. It included the Philippines, the Dutch East Indies (except for Sumatra), Borneo, Australia and its mandate Territory of ...
, the U.S. Army deployed none of its dedicated armored divisions and only a third of its 70 other separate tank battalions. A small number of M3 Lees saw action in the central Pacific Ocean Theater in 1943. While the
US Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through com ...
deployed all six of its tank battalions, none of these were equipped with the M3 Lee. (USMC tank battalions were equipped initially with M3 Stuarts, which were then replaced by M4 Shermans in mid-1944.) Some M3 Grants played an offensive role with the
British Indian Army The British Indian Army, commonly referred to as the Indian Army, was the main military of the British Raj before its dissolution in 1947. It was responsible for the defence of the British Indian Empire, including the princely states, which cou ...
, in the Southeast Asian Theater. The Australian Army also used Grants during World War II, mainly for homeland defence and training purposes.


Pacific Ocean Theater

The only combat use of the M3 Lee by the US Army against Japanese forces occurred during the
Gilbert and Marshall Islands campaign The Gilbert and Marshall Islands campaign were a series of battles fought from August 1942 through February 1944, in the Pacific theatre of World War II between the United States and Japan. They were the first steps of the drive across the cent ...
of 1943. Following the better-known landing at Tarawa, the US 27th Infantry Division made an amphibious assault on Makin Island with armoured support from a platoon of M3A5 Lees equipped with deep-wading kits belonging to the US Army's 193rd Tank Battalion.


Burma

After British Commonwealth forces in Europe and the Mediterranean began receiving M4 Shermans, about 900 British-ordered M3 Lees/Grants were shipped to the Indian Army. Some of these saw action against Japanese troops and tanks in the Burma Campaign of WWII.Zaloga (Armored Thunderbolt) p. 30-31 They were used by the British Fourteenth ArmyHunnicutt (Sherman) p. 105 until the fall of
Rangoon Yangon ( my, ရန်ကုန်; ; ), formerly spelled as Rangoon, is the capital of the Yangon Region and the largest city of Myanmar (also known as Burma). Yangon served as the capital of Myanmar until 2006, when the military government ...
, regarded as performing "admirably" in the original intended role of supporting infantry in Burma between 1944 and 1945. In the Burma Campaign, the M3 medium tank's main task was
infantry Infantry is a military specialization which engages in ground combat on foot. Infantry generally consists of light infantry, mountain infantry, motorized infantry & mechanized infantry, airborne infantry, air assault infantry, and mar ...
support. It played a pivotal role during the
Battle of Imphal ) , partof = the Operation U-Go during the Burma Campaign in the South-East Asian theatre of World War II , image = Imphalgurkhas.jpg , image_size = 300 , caption = Gurkhas advancing with Grant tanks ...
, during which the
Imperial Japanese Army The was the official ground-based armed force of the Empire of Japan from 1868 to 1945. It was controlled by the Imperial Japanese Army General Staff Office and the Ministry of the Army, both of which were nominally subordinate to the Emper ...
's 14th Tank Regiment (primarily equipped with their own
Type 95 Ha-Go The was a light tank used by the Empire of Japan during the Second Sino-Japanese War, at Nomonhan against the Soviet Union, and in the Second World War. It proved sufficient against infantry but, like the American M3 Stuart light tank, was not d ...
light tanks, together with a handful of captured British
M3 Stuart The M3 Stuart/Light Tank M3, was an American light tank of World War II. An improved version of the tank entered service as the M5 in 1942 to be supplied to British and other Commonwealth forces under lend-lease prior to the entry of the U.S. i ...
light tanks as well) encountered M3 medium tanks for the first time and found their light tanks outgunned and outmatched by the better British armour. Despite their worse-than-average off-road performance, the British M3 tanks performed well as they traversed the steep hillsides around
Imphal Imphal ( Meitei pronunciation: /im.pʰal/; English pronunciation: ) is the capital city of the Indian state of Manipur. The metropolitan centre of the city contains the ruins of Kangla Palace (also known as Kangla Fort), the royal seat of the f ...
and defeated the assaulting Japanese forces. Officially declared obsolete in April 1944, nevertheless, the Lee/Grant saw action until the end of the war in September 1945.


Australia

At the beginning of the war, Australian Army doctrine viewed tank units as minor offensive components within infantry divisions. It had no dedicated armoured branch and most of its very limited capabilities in tank warfare had been deployed to the North African Campaign (i.e. three divisional cavalry battalions). By early 1941, the effectiveness of large-scale German panzer attacks had been recognised, and a dedicated armoured mustering was formed. The
Australian Armoured Corps The Royal Australian Armoured Corps (RAAC) is a corps of the Australian Army which provides the Australian Defence Force's armour capability. Armour combines firepower, mobility, protection and networked situational awareness to generate shock ...
initially included the cadres of three armoured divisions – all of which were equipped at least partly with M3 Grants made available from surplus British orders. The
1st Australian Armoured Division The 1st Armoured Division was an armoured formation of the Australian Army, raised in 1941 as part of the Second Australian Imperial Force (AIF) during World War II. While the Division was originally to be deployed to North Africa in late 1941, i ...
was formed with a view towards complementing the three Australian infantry divisions then in North Africa. However, following the outbreak of hostilities with Japan,Zach Lambert, 2012
"The Birth, Life and Death of the 1st Australian Armoured Division"
, '' Australian Army Journal'' vol. 9, no. 1, pp. 96–97.
the division was retained in Australia. During April–May 1942, the 1st Armoured Division's regiments were reported to be re-equipping with M3 Grants and were training, in a series of large exercises, in the area around
Narrabri Narrabri ( ) is a locality and seat of Narrabri Shire local government area in the North West Slopes, New South Wales, Australia on the Namoi River, northwest of Sydney. It sits on the junction of the Kamilaroi Highway and the Newell Highway. ...
. The cadres of other two divisions, the
2nd A second is the base unit of time in the International System of Units (SI). Second, Seconds or 2nd may also refer to: Mathematics * 2 (number), as an ordinal (also written as ''2nd'' or ''2d'') * Second of arc, an angular measurement unit, ...
and 3rd Armoured Divisions were both officially formed in 1942, as
Militia A militia () is generally an army or some other fighting organization of non-professional soldiers, citizens of a country, or subjects of a state, who may perform military service during a time of need, as opposed to a professional force of r ...
(reserve/home defence) units. These divisions were also partly equipped with M3 Grants.Ronald Hopkins, 1978, ''Australian Armour: A History of the Royal Australian Armoured Corps 1927–1972'', Puckapunyal, Royal Australian Armoured Corps Tank Museum, pp. 125–130, 326. In January 1943, the main body of the 1st Armoured Division was deployed to home defence duties between
Perth Perth is the capital and largest city of the Australian state of Western Australia. It is the fourth most populous city in Australia and Oceania, with a population of 2.1 million (80% of the state) living in Greater Perth in 2020. Perth is ...
and
Geraldton Geraldton ( Wajarri: ''Jambinu'', Wilunyu: ''Jambinbirri'') is a coastal city in the Mid West region of the Australian state of Western Australia, north of the state capital, Perth. At June 2018, Geraldton had an urban population of 37,648. ...
, where it formed part of
III Corps 3rd Corps, Third Corps, III Corps, or 3rd Army Corps may refer to: France * 3rd Army Corps (France) * III Cavalry Corps (Grande Armée), a cavalry unit of the Imperial French Army during the Napoleonic Wars * III Corps (Grande Armée), a unit of t ...
. By the middle of the war, the Australian Army had deemed the Grant to be unsuitable for combat duties overseas and M3 units were re-equipped with the Matilda II before being deployed to the
New Guinea New Guinea (; Hiri Motu: ''Niu Gini''; id, Papua, or , historically ) is the world's second-largest island with an area of . Located in Oceania in the southwestern Pacific Ocean, the island is separated from Australia by the wide Torres ...
and
Borneo Campaign The Borneo campaign or Second Battle of Borneo was the last major Allied campaign in the South West Pacific Area during World War II to liberate Japanese-held British Borneo and Dutch Borneo. Designated collectively as Operation Oboe, ...
s. Due to personnel shortages, all three divisions were officially disbanded during 1943 and downgraded to brigade- and battalion-level units.


Post-war use in Australia

During the war, the Australian Army had converted some M3 Grants for special purposes, including a small number of bulldozer variants,
beach armoured recovery vehicle A beach armoured recovery vehicle (BARV) is an armoured recovery vehicle used for amphibious landings. There have been three different BARVs in British service since their introduction during World War II. They have also been used by Dutch and ...
s, and
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prototypes. Following the end of the war, 14 of the Australian M3A5 Grants were converted to a local
self-propelled gun Self-propelled artillery (also called locomotive artillery) is artillery equipped with its own propulsion system to move toward its firing position. Within the terminology are the self-propelled gun, self-propelled howitzer, self-propelled ...
design, the
Yeramba The Yeramba was an Australian self-propelled howitzer built after the end of the Second World War in the late-1940s. They were produced by mounting the 25 pounder gun-howitzer on an American M3A5 Grant tank hull, and were converted by the Ordnan ...
, becoming the only SPG ever deployed by the Australian Army. Fitted with a
25-pounder The Ordnance QF 25-pounder, or more simply 25-pounder or 25-pdr, was the major British field gun and howitzer during the Second World War. Its calibre is 3.45-inch (87.6 mm). It was introduced into service just before the war started, combin ...
field gun, the Yerambas remained in service with the 22nd Field Regiment,
Royal Australian Artillery The Royal Regiment of Australian Artillery, normally referred to as the Royal Australian Artillery (RAA), is a Regiment of the Australian Army descended from the original colonial artillery units prior to Australia's federation. Australia's first ...
, until the late 1950s. Many M3s deemed surplus to Australian Army requirements were acquired by civilian buyers during the 1950s and 1960s for conversion to earthmoving equipment and/or tractors.


Conclusion

Overall, the M3 was able to be effective on the battlefield from 1942 until 1943. However, US armored units lacked tactical expertise on a method to overcome its design. Its armor and firepower were equal or superior to most of the threats it faced, especially in the Pacific. Long-range, high-velocity guns were not yet common on German tanks in the African theater. However, the rapid pace of tank development meant that the M3 was very quickly outclassed. By mid-1942, with the introduction of the German
Tiger I The Tiger I () was a German heavy tank of World War II that operated beginning in 1942 in Africa and in the Soviet Union, usually in independent heavy tank battalions. It gave the German Army its first armoured fighting vehicle that mounted ...
, the up-gunning of the
Panzer IV The ''Panzerkampfwagen'' IV (Pz.Kpfw. IV), commonly known as the ''Panzer'' IV, was a German medium tank developed in the late 1930s and used extensively during the Second World War. Its ordnance inventory designation was Sd.Kfz. 161. The Panz ...
to a long 75 mm gun, and the first appearance in 1943 of the
Panther Panther may refer to: Large cats * Pantherinae, the cat subfamily that contains the genera ''Panthera'' and ''Neofelis'' **'' Panthera'', the cat genus that contains tigers, lions, jaguars and leopards. *** Jaguar (''Panthera onca''), found in S ...
, along with the availability of large numbers of the
M4 Sherman } The M4 Sherman, officially Medium Tank, M4, was the most widely used medium tank by the United States and Western Allies in World War II. The M4 Sherman proved to be reliable, relatively cheap to produce, and available in great numbers. It ...
, the M3 was withdrawn from service in the European Theater.


Variants


US variants

American designations first with British Commonwealth designations (where actually used) given in parentheses ;M3 (Lee I) :Original baseline design. Riveted hull. Continental radial gasoline engine. 4,724 built. ;M3A1 :Cast (rounded) upper hull variant. 300 built. 28 were experimentally converted with the Guiberson T-1400-2 350 hp radial diesel engine, which proved unsatisfactory. Never used operationally. ;M3A2 :Welded hull version of baseline M3. Only 12 produced, 10 of which were completed as Grant I. At least 1 of these was supplied to Australia and another was converted to a Grant Scorpion. ;M3A3 (Lee V) :Diesel-engined variant with welded hull. Twin GM 6-71
diesel Diesel may refer to: * Diesel engine, an internal combustion engine where ignition is caused by compression * Diesel fuel, a liquid fuel used in diesel engines * Diesel locomotive, a railway locomotive in which the prime mover is a diesel engi ...
engines coupled together to make the GM6046 powerpack. Side doors welded shut or later eliminated. 288 built, 49 supplied to the UK and 77 supplied to Brazil. 83 M3A3 hulls completed as Grant II. ;M3A4 :Stretched riveted hull to accommodate the Chrysler A57 multibank engine, made up of five 4.12 litre displacement, 6-cyl L-head car engines (block upwards) mated to a common crankshaft. Displacement 21 litres, at 2,700 rpm. Side doors eliminated. 109 built. Only used for training in the USA. ;M3A5 :Rivetted hull but otherwise as per the M3A3. 591 built, 387 as Grant IIs. Only used operationally once by US forces. 23 supplied to Brazil. ;M31 Tank Recovery Vehicle (Grant ARV I) :Based on M3
chassis A chassis (, ; plural ''chassis'' from French châssis ) is the load-bearing framework of an artificial object, which structurally supports the object in its construction and function. An example of a chassis is a vehicle frame, the underpar ...
, with dummy turret and guns. A winch installed. ;M31B1 Tank Recovery Vehicle :Based on M3A3. ;M31B2 Tank Recovery Vehicle :Based on M3A5. :There were 296 total M31B1/B2 vehicles, although the precise quantity of both variants is unknown (it appears that M31B1 was more common). 146 of them were converted from used tanks and 150 from newly built tanks before their acceptance. ;M33 Prime Mover :M31 TRV converted to the artillery tractor role, with turret and crane removed. 109 vehicles were converted in 1943-44. ; 105 mm Howitzer Motor Carriage M7 (''Priest'') :105 mm M1/M2
howitzer A howitzer () is a long- ranged weapon, falling between a cannon (also known as an artillery gun in the United States), which fires shells at flat trajectories, and a mortar, which fires at high angles of ascent and descent. Howitzers, like ot ...
installed in open
superstructure A superstructure is an upward extension of an existing structure above a baseline. This term is applied to various kinds of physical structures such as buildings, bridges, or ships. Aboard ships and large boats On water craft, the superstruct ...
. A gunless version was used as an observation post (OP) vehicle ; 155 mm Gun Motor Carriage M12 :Designed as the T6. A 155 mm howitzer on M3 chassis. 100 built in 1942-1943. M30 Cargo Carrier on same chassis to transport gun crew and ammunition.


British Commonwealth service names and variants

*Grant I ** M3 and M3A2 with turret to British specification and internal differences, no cupola. 1,211 M3-based and 10 M3A2-based Grant Is supplied. *Grant II **Final Baldwin production based on M3A3 and M3A5 after US Ordnance ordered them to switch from petrol to diesel production. 381 Grant IIs based on M3A5s were supplied along with 83 based on M3A3s. *Grant ARV **A single prototype conversion of a Grant I. Turret and hull gun removed and replaced with
armored recovery vehicle An armoured recovery vehicle (ARV) is typically a powerful tank or armoured personnel carrier (APC) chassis modified for use during combat for Vehicle recovery (military), military vehicle recovery (towing) or repair of battle-damaged, stuck, a ...
equipment including winch and jib. A twin
Bren light machine gun The Bren gun was a series of light machine guns (LMG) made by Britain in the 1930s and used in various roles until 1992. While best known for its role as the British and Commonwealth forces' primary infantry LMG in World War II, it was also used ...
mount was fitted for AA defence. The superior M31 was adopted instead in small numbers Chamberlain & Ellis p113 *Grant ARV I **US T2 (later M31). It is not clear which version(s) the UK received: M31, M31B1 or M32B2 *Grant Command **Fitted with map table and extra radio equipment. On some, the 37mm guns were removed or replaced with dummies. *Grant Scorpion III ** gun removed to allow for fitment with Scorpion III
mine flail 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 ...
by REME workshops, few made in January 1943 for use in Tunisia campaign in North Africa. At least 1 was based on a welded-hull Grant *Grant Scorpion IV **Scorpion III with additional Bedford motor at rear to increase Scorpion flail power. *Grant CDL **"
Canal Defence Light The Canal Defence Light (CDL) was a British "secret weapon" of the Second World War, based upon the use of a powerful carbon-arc searchlight mounted on a tank. It was intended to be used during night-time attacks, when the light would allow ene ...
"; 37mm turret replaced by one with a powerful carbon arc light which could be set to flicker rapidly to disorient the enemy. A BESA (UK) or Browning M1919 (US) machine gun was fitted and some were fitted with a dummy 37mm gun. The Grant CDL replaced the earlier Matilda II CDL in anticipation of use in North West Europe. 335 were converted in the UK, some on refurbished M3 Lee hulls specially supplied by the US. The US also produced 497 of their own version to equip 6 tank battalions under the designation Shop Tractor T10 to disguise its purpose. Some of these used the M3A1 cast hull.


Australian variants

*M3 BARV ** A single M3A5 was converted into a "
Beach Armoured Recovery Vehicle A beach armoured recovery vehicle (BARV) is an armoured recovery vehicle used for amphibious landings. There have been three different BARVs in British service since their introduction during World War II. They have also been used by Dutch and ...
". *
Yeramba The Yeramba was an Australian self-propelled howitzer built after the end of the Second World War in the late-1940s. They were produced by mounting the 25 pounder gun-howitzer on an American M3A5 Grant tank hull, and were converted by the Ordnan ...
Self Propelled Gun. **Australian Self-propelled
25-pounder The Ordnance QF 25-pounder, or more simply 25-pounder or 25-pdr, was the major British field gun and howitzer during the Second World War. Its calibre is 3.45-inch (87.6 mm). It was introduced into service just before the war started, combin ...
. 13 vehicles built in 1949 on M3A5 chassis in a conversion very similar to the Canadian Sexton.


Designs based on chassis

* Medium Tank M4 Sherman * Tank Cruiser, Ram - see article for full list of variants * 105 mm Self Propelled Gun, Priest * Kangaroo armoured personnel carrier * 25pdr SP, tracked, Sexton Mark I - Sexton Mark II was on a
Grizzly The grizzly bear (''Ursus arctos horribilis''), also known as the North American brown bear or simply grizzly, is a population or subspecies of the brown bear inhabiting North America. In addition to the mainland grizzly (''Ursus arctos horri ...
(M4-based) chassis *
M12 Gun Motor Carriage The 155 mm Gun Motor Carriage M12 was a U.S. self-propelled gun developed during the Second World War. It mounted a 155 mm gun derived from the French Canon de 155mm GPF field gun. Development The idea for the M12 was first proposed in ...
- 155mm field gun


Operators

* Australia did not use the M3 series operationally and all remained in Australia. 777 were supplied directly from the USA: 290 Grant I, 232 Grant II and 255 Lee I. 149 Grant IIs were kept in post-war reserve service until 1955, by which date only 50 were still operational. * 77 M3A3 and 23 M3A5 supplied * Canada used the M3 platform to develop its own Ram tank but did not use the M3 tank itself * Free French forces operated the M31 ARV series but did not operate the M3 as a gun tank. * : One captured during operations in 1942; later recaptured by the Red Army. * 896 M3s were received, a mix of new delivery and shipments from N Africa: 517 Lee I and 379 Grant I. * While British Grants supported NZ forces in N Africa, NZ did not operate the M3 series itself. * : Four captured in
Crimea Crimea, crh, Къырым, Qırım, grc, Κιμμερία / Ταυρική, translit=Kimmería / Taurikḗ ( ) is a peninsula in Ukraine, on the northern coast of the Black Sea, that has been occupied by Russia since 2014. It has a p ...
during operations in early 1944 * 1,386 M3 supplied * 1,685 Grant and 1,202 Lee supplied. These figures include tanks shipped directly to India and Australia. 657 Grant and 75 Lee were supplied directly to N Africa with 97 Grant and 119 Lee supplied directly to the UK. *


In popular culture

* In the 1943 movie ''
Sahara , photo = Sahara real color.jpg , photo_caption = The Sahara taken by Apollo 17 astronauts, 1972 , map = , map_image = , location = , country = , country1 = , ...
'', starring
Humphrey Bogart Humphrey DeForest Bogart (; December 25, 1899 – January 14, 1957), nicknamed Bogie, was an American film and stage actor. His performances in Classical Hollywood cinema films made him an American cultural icon. In 1999, the American Film In ...
, the character's main form of transportation was an M3 Lee named "Lulu Belle"; the same is true of the 1995 remake starring
Jim Belushi James Adam Belushi (; born June 15, 1954) is an American actor. He is best known for the role of Jim on the sitcom '' According to Jim'' (2001–2009). His other television roles include '' Saturday Night Live'' (1983–1985), '' Total Security' ...
. * An M3 Lee tank (also named "Lulu Belle") was featured in the 1979 Steven Spielberg comedy film ''
1941 Events Below, the events of World War II have the "WWII" prefix. January * January–August – 10,072 men, women and children with mental and physical disabilities are asphyxiated with carbon monoxide in a gas chamber, at Hadamar E ...
''. * In the anime '' Girls und Panzer'', the M3 Lee is used by the Rabbit Team, of Ōarai Academy.


See also

*
SCR-245 The SCR-245 Radio was a mobile MF/ HF Signal Corps Radio used by the U.S. Army before and during World War II, for short range ground communications, It was one of the first crystal controlled sets used by the Army. Use The SCR-245 was standar ...
*
List of "M" series military vehicles The following is a (partial) listing of vehicle model numbers or M-numbers assigned by the United States Army. Some of these designations are also used by other agencies, services, and nationalities, although these various end users usually assig ...
* List of U.S. military vehicles by supply catalog designation


Notes


Explanatory footnotes


Citations


General references

* Bishop, Chris ''The Encyclopedia of Weapons of World War II'' (2002) Metro Books. * * * Hunnicutt, R. P. ''Sherman, A History of the American Medium Tank.'' 1978; Taurus Enterprises. . * Porter, David ''Allied Tanks of World War II (World's Great Weapons)'' (2014) Amber Books Ltd. * USMC D-F Series Tables of Equipment (TOEs), 1942-1944 *. * . * * Zaloga, Steven. ''Armored Thunderbolt: The US Army Sherman in World War II''. 2008; Stackpole Books. .


Further reading

* * * * * * *


External links


British M3, M3A2, M3A3 and M3A5 Grants

"U.S. Army's 29 ton tanks packs a 75mm gun"
''Popular Mechanics'', July 1941—one of the first public articles about the M-3

: 145-page book about wartime production of tanks by Chrysler Corporation, including the M3.


World War II Vehicles


at OnWar
M3 in the USSR
{{Authority control Medium tanks of the United States Military vehicles introduced from 1940 to 1944 World War II medium tanks Lee Grant, M3