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The "Landship"
In 1915, Winston Churchill created the Landships Committee to face trench warfare during WW1. William Foster & Co. of Lincoln were contracted to build this first completed prototype. The tank was made work with imported American tracks. Never seeing the battlefield, This tank went by the name of "Little Willie", but the moment it was finished, the better adaptation was already underway. Exact day is unknown.
http://www.bbc.co.uk/ahistoryoftheworld/objects/kTH6LIqHT1q6ND1OQJdBtA -
M4 Sherman
The tank was named by the British for the American Civil War General William Tecumseh Sherman. The M4 was an adaptation of the M3 Lee medium tank. The US Military used this tank during WW2, and it became a widely used tank for the US during the war. It sported a 75mm main gun, and was faster than a lot of tanks at the time, which made it very versatile. The design was revised several times to add new guns to the body.
http://www.militaryfactory.com/armor/detail.asp?armor_id=40 -
German Panzer "Panther"
Though exact dates and creators are not specified, german nazi engineers began working on the panther in 1941. It was then deployed between the years of 1943 and 1945. This tank was one of the most feared vehicles on the battlefield during WW2. Having steel front armor which was hard to pierce, and had a high velocity 75mm cannon on the front. Nazi engineers used ideas from other tanks, using sloping armor and wide road wheels.
http://militaryhistory.about.com/od/vehiclesarmor/p/panther.htm -
"King" Tiger
The "King" Tiger was the most feared nazi heavy tank which started development in 1937, which was slowly developed over the course of WW2. The Germans needed heavy tanks after finding out the Allies had superior tanks, and stole some designs from Russian tanks. They used slanted armor designs, and constantly changed design up until it was deployed as war conditions changed. German engineers under Hitler designed it.
http://militaryhistory.about.com/od/vehiclesarmor/p/tiger-tank.htm -
Leopard 2a7
Developed by Krauss-Maffei, the Leopard 2a7 is yet another tank made by Germans, which excel in engineering. This is currently one of the best main battle tanks in the world. This tank is modular and upgradeable, sporting several different steel and metal alloy sheets of armor. It's also been adapted to have 360 degree protection to RPG's. It also has a 120mm cannon with better accuracy and range than past models.
http://www.military-today.com/tanks/leopard_2a7.htm
