High Quality Content by WIKIPEDIA articles! World War II changed the possibilities for animation. Prior to the war, animation was seen as a form of childish entertainment. The attack on Pearl Harbor was a turning point in its utility. On December 8, 1941, the U.S. Army began working with Walt Disney at his studio, stationing Army personnel there for the duration of the war. The Army and Disney set about making various types of films for several different audiences. Most films meant for the public included some type of propaganda, while films for the troops included training and education about a given topic.