Note 2: In the belligerent countries the cinema was considered as a good and effective part of the moral rearmament of the people, and it was therefore not only the weekly newsreels that were used for propaganda during the First and Second World War. It was in the very high degree also the case with the short films as well as in feature films. As an example of American cartoons in propaganda service during World War I, include Winsor McCay's "The Sinking of the Lusitania" (1916), which, like all McCay's cartoons the quality rank high, both in terms of drawing, animation and cutting. But English movies and cartoon people might contribute to raising the morale of the population, so they would not grumble about savings, rationing and higher taxes as a result of warfare, and the mutilation and loss of farmers' lives on the battlefields over on the mainland.

During the second World War Disney and his staff was called to do military service by producing educational, instructional and propaganda films for the U.S. government. The first two categories of films were produced for display of military protection, ie. respectively, Army, Navy and Air Force, while the latter category of film was directed against the civilian population. In 1941 Walt Disney Productions produced cartoons as Four Methods of Flush Riveting, who had Lockheed Aircraft Company as a sponsor. The same year, Disney produced a military training film titled Stop that Tank, for National Film Board of Canada and also four films about Canadian War Savings. For the american taxation authorities Disney produced in 1943 the special cartoon The Spirit of '43, who had Donald Duck in the lead role. The film was intended to explain to the American people the necessity of increased taxation as a result of the costs of warfare. The same year, Disney produced on behalf of the Office of War Information a film entitled Out of the Frying Pan into the Firing Line, and thus the public could see Minnie Mouse show the American housewives how important it was to save on fat in cooking. For the Coordinator of Inter-American Affairs produced Disney Studios in 1943, a cartoon in a series with a total of four films about health. The film's title was Water, Friend or Enemy, and it was designed for viewing in South America. In addition, Disney produced for own account in 1943, the unique Victory Through Air Power, based on a book by Major Alexander de Seversky and General Billy Mitchell.

The film promoted the then-controversial idea that strategic, long-range bombing flights could help to win the war. Such bomb flights were in the final stages of the war used against Germany where American and British bombers flew deep into the country and bombed German cities. In this movie, there was a mix of live-action, animation and trick films. David Hand served as animation supervisor and it was as far as we know, the last Disney film, he had to do. In 1946, he let himself be recruited by the English filmmagnat J. Arthur Rank, which hoped to provide English entertainment cartoons international status, by employing the particular in cartoon circles famous man served as supervising producer at its recently opened cartoon studio, Gaumont British Animation (GBA). See more of this later.

But beyond the weekly film revue had the short entertainment cartoons also their heyday in the decades when especially the major U.S. film companies used these cartoons, partly as a crowd puller and as a supplement that allowed the feature films to be less than about 90 minutes, which was the normal length of a feature film in 1930'-40's.