 The concept of people's war became less important with the collapse of the Soviet Union and the increasing possibility of conflict with the United States over Taiwan.The strategy was utilized in the early 1950s by the hastily formed People's Volunteer Army during the Korean War, to garner support from the local Korean populace to win the war by driving the United Nations forces from the peninsula.At the battles of Chongchon river valley and Lake Changjin, the army employed guerrilla tactics in full scale, following the people's war doctrine.