One year after it was founded as a republic after a three-year civil war, China had to face the situation that a war had broken out in the Korean Peninsular. The UN Army tried to restore the peace and order there, but their airplanes flew over the border area and shells were fired inside China, which is a close neighbor of Korea, with a river serving a divide between the two countries.
Chairman Mao Zedong decided to send armed forces to Korea in the hope that with a war with big powers in the world the future generations of Chinese people would not have other wars any more.
