République socialiste soviétique carélo-finnoise
The Karelo-Finnish Soviet Socialist Republic (Karelo-Finnish SSR; ; ), also called Soviet Karelia or simply known as Karelia, was a republic of the Soviet Union. It existed from 1940 until it was made part of the Russian SFSR in 1956 as the Karelian Autonomous Soviet Socialist Republic. The latter became the Republic of Karelia, a federal subject of Russia, on 13 November 1991.