The Korean National Semi-professional Football League was contested between South Korean works teams and military teams from 1964 to 2002.
There were also many corporate football clubs especially in Seoul and Pyongyang, two big cities in Korea.
The corporate club division was made in All Joseon Football Tournament in Pyongyang in 1930,[1] and Seoul Semi-professional Football League was founded in 1939, but both were stopped because of the Japanese government's policy during World War II.
[2][3] The Seoul League was reopened in 1949, but it was stopped again during the Korean War.
It remained until 2002 before Korea National League was officially founded in 2003.