Kitanippon

North Japan, officially the People's Republic of Japan (PRJ or PR Japan; Japanese: 日本人民共和国, Nippon Jinmin Kyowakoku), is a country in East Asia constituting the northern part of the Japanese islands. The country is bordered to the north by Russia through the Soya Strait and to the south by South Japan, with the heavily fortified Japanese wall (DMZ) separating the two. North Japan, like South Japan, claims to be the legitimate government of all of Japan.

At the end of the Second World War, Japan was divided into a Soviet and Allied zones; the south coalesced into the State of Japan, retaining the monarchy, while in Tohoku, the Soviets created an alternate government dominated by communists such as Kyuichi Tokuda and Sanzo Nosaka. During the Korean War, the North Japanese government launched invasions of South Japan and managed to overrun the Kanto region; however, UN forces repulsed the invasion, ending in a stalemate and divided Tokyo. Both Japanese governments claim their zones of Tokyo as their capital although some of their offices are also located in other cities; in North Japan's case, Sapporo.

North Japan is a socialist state, and ruled to this day by the Japanese Communist Party.