[1] It took command of the North Korean divisions on the eastern sector, in the Seoul area, with the NK II Corps on its flank.
It advanced during the early phase of the Korean War, then fought in the Battle of Pusan Perimeter.
According to United States Far East Command Headquarters intelligence section as of 31 July 1952 a Korean People's Army Corps was commanded by a lieutenant general.
[4] The rear services commander had largest section as well as the staff officer with operational units compromising part of it.
[5] These independent assets were: As of 31 July 1952, the U.S Far East Command reported the composition of I Corps units as follows:[6]