British Mark IV Tank

A "male" Mark IV tank, a British tank that was used in service in 1917. Tanks were first used in World War I by the British during the Battle of the Somme in 1916. However, tanks did not become effective in battle until the following year, when their design was improved, incorporating thicker armour plating to withstand bullets from German anti-tank rifles. Over 1,000 Mark IVs were built, far more than any other tank at the time, and they saw action at Messines and Cambrai in 1917.

Imperial War Museum

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World War I; Tank

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