Question

who was kim chaek?
chinese military strategist who directed both chinese and north korean armies
south korean poet who defected to north korea to lead a revolutionary brigade
north korean deputy prime minister and commander of north korean forces
south korean general and first democratically elected president of south korea

Explanation:

Kim Chaek was a North - Korean deputy prime minister and commander of North Korean forces. He made important contributions in North Korea's political and military fields.

Answer:

North Korean deputy prime minister and commander of North Korean forces