Animation was co-opted in the 1940s for training purposes. Disney produced Four Methods of Flush Riveting for Lockheed Martin's engineers. The Army Air Force, Navy, and Bureau of Aeronautics also commissioned and supervised films. Animations were written to train pilots and ground crewmen about The Occluded Fronts, Thunderstorms, and The Warm Front. Because of the sensitive content displayed in Aircraft Wood Repair, the word “RESTRICTED” was the first word displayed in the film which discussed the type of glue used for wooden aircraft. Wings Engines Fuselage Tail was a short film that taught servicemen how to best identify aircraft quickly. The Navy did a similar film called The 3-Point System which trained servicemen how to identify U.S. cruisers.
The most elaborate training film, Disney's Stop That Tank!, was commissioned by the Canadian Directorate of Military Training. This 21-minute full-color cartoon was intended for Canadian infantrymen assigned the Boys anti-tank rifle. The first few minutes of the cartoon depict Hitler and his tanks being defeated by Allies using the new rifle. The film continues in a largely more serious vein, showing how the weapon is to be used and cleaned.
The most elaborate training film, Disney's Stop That Tank!, was commissioned by the Canadian Directorate of Military Training. This 21-minute full-color cartoon was intended for Canadian infantrymen assigned the Boys anti-tank rifle. The first few minutes of the cartoon depict Hitler and his tanks being defeated by Allies using the new rifle. The film continues in a largely more serious vein, showing how the weapon is to be used and cleaned.