Flag of Japanese Siberia
Japanese Siberia is the eastern Siberian colony of Japan, which was conquered during WWII. After the conquering of the colony, Japan treated the Soviets there like the Americans in the PSA, but a little bit harsher. Jewish Siberians were executed, and Soviets had little freedom. During what we probably know as the German-Japanese Cold War, it was threatened on by the Greater Nazi Reich, but it got no where and it's still a colony of Japan.