North Korea
Japan tried to suppress Korean traditions and culture and ran the economy primarily for its own benefit. Korean resistance groups known as Dongnipgun (Liberation Army) operated along the Sino-Korean border, fighting guerrilla warfare against Japanese forces. Some of them took part in allied action in China and parts of South East Asia. One of the guerrilla leaders was the communist Kim Il-sung, who later became the first leader of North Korea.
List of leaders of North Korea
From 1948 to 1972, the nominal head of state was the Chairman of the Standing Committee of the Supreme People's Assembly (SPA). In 1972, the constitution was amended to create an executive presidency. Kim Il-sung, who had served as Premier of North Korea since the DPRK's inception, was unanimously elected President of North Korea by the Supreme People's Assembly on December 28. He held this office until his death on 8 July 1994 when he was proclaimed the "Eternal President of the Republic". Since then, the practical functions of the head of state have been exercised by the President of the Presidium of the SPA.