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.
Kim Il-sung bibliography
Kim Il-sung (15 April 1912 – 8 July 1994) was the leader of North Korea for 46 years, from its establishment in 1948 until his death in 1994.