USA HISTORY

Detailed explanation-1: -UN forces invaded North Korea in October 1950 and moved rapidly towards the Yalu River-the border with China-but on 19 October 1950, Chinese forces of the People’s Volunteer Army (PVA) crossed the Yalu and entered the war.

Detailed explanation-2: -In October 1950, Chinese troops under the name of the Chinese People’s Volunteer Army (CPV) crossed the Yalu River to assist North Korean armies, and engaged in the Korean War in an offensive manner after the U.S. troops crossed the 38th parallel.

Detailed explanation-3: -Following setbacks sustained by the Korean People’s Army and the crossing of the 38th parallel by the United Nations Command led by the United States Armed Forces, in October 1950 Chinese forces secretly crossed into North Korea in response to security concern of a possible U.S. invasion of Chinese territory.

Detailed explanation-4: -This had not gone unnoticed by the Chinese and Mao Zedong was especially fearful of the presence of U.S troops along his border. At the invitation of the North Koreans, a massive volunteer army of Chinese troops invaded Korea and pushed the UN forces all the way back down the Korean Peninsula.

Detailed explanation-5: -The day after the U.N. Security Council recommended that all U.N. forces in Korea be placed under the command of the U.S. military, General Douglas MacArthur is appointed head of the United Nations Command by President Harry S. Truman.