High Quality Content by WIKIPEDIA articles! The Commanders of World War II were for the most part career officers. They were forced to adapt to new technologies and shaped the direction of modern warfare. Some political leaders, particularly those of the principal dictatorships involved in the conflict, Adolf Hitler (Germany), Joseph Stalin (Soviet Union), Benito Mussolini (Italy) and Chiang Kai-shek (China), acted as supreme military commanders as well as civil commanders of their respective countries or empires.