British Whippet tank, 1918.

The Whippet was a medium tank designed to be faster and more manoeuvrable that the existing British tanks of the time. It was also the first tank with a separate turret. The Whippet first saw action in March 1918 and performed well for the remainder of the war, proving adept at exploiting any breaks in the German lines. From an album of 24 photographs, World War One, Western Front (1914-1918), August to December 1918.