Fort Knox. M-3 tank crews. The crew of an M-3 tank at Fort Knox, Kentucky, learn all the ways of causing trouble for the Axis with a 75mm gun, a 37mm gun and four machine guns. The Fort Knox school for tank crews has graduated many men who are now ready to meet the enemy on our far-flung battle lines and on more than equal terms

Tanks in mass culture. Tanks were first developed separately and simultaneously by Great Britain and France as a means to break the deadlock of trench warfare on the Western Front. Their first use in combat was by the British Army in September 1916 during the Battle of the Somme. The name "tank" was adopted by the British during the early stages of their development, as a security measure to conceal their purpose.

Large WWII photograph collection made with aid of image recognition.