Karafuto Agency, from 1943 Karafuto Prefecture /Japanese: 樺太庁, Karafuto-chō later 樺太県, Karafuto-ken/, commonly known as South Sakhalin, was a colony of the Empire of Japan on Sakhalin from 1907 to 1943 and later a prefecture until 1945.
Karafuto became a territory of the Empire of Japan in 1905...