U.S. Army Training Film ‘The Employment Of Machine Guns In The Defense’ 1937
National Archives description: “TRAINING FILM: On the use of machine gun in defensive positions. Reel1demonstrates how to select and prepare defensive machine gun position. Reel2 continues with preparation. Fields of fire are set and range cards are made. Trenches dug and barbed wire strung. R.3: shows gun crew under attack. A tank attacks. “Enemy” attacks again and is repulsed.” National Archives identifier: 36295