In 1943, the Japanese Naval Ministry produced Momotarō no Umiwashi (Momotaro's Divine Eagles) and the following year began production on the animated feature Momotarō: Umi no Shinpei (often translated as Momotaro's Divine Sea Warriors). The protagonist of both films was the "Peach Boy" of Japanese folklore and his various animal friends in the Imperial Japanese Navy. Both films have these rather cutesy animals training as good soldiers of the emperor whether it be practicing parachute jumps, building airstrips in Borneo, taking off from aircraft carriers, or, in the case of the last film, jumping on a map of the US.

Youtube has Momotarō no Umiwashi and Momotarō: Umi no Shinpei online.

Here are Nazi cartoons in occupied Serbia: https://www.youtube.com/watch?v=As3ujlmiGC8 https://www.youtube.com/watch?v=_nTSfWhpS4g