The Korean War began on June 25, 1950. The conflict was triggered when North Korean forces, supported by the Soviet Union and China, invaded South Korea. This aggressive act aimed to unify the Korean Peninsula under a communist regime. The United Nations, led by the United States, intervened to defend South Korea, marking the start of a three-year-long war. The war ended in an armistice agreement in 1953, which resulted in a ceasefire but no formal peace treaty, leaving the two Koreas technically still at war to this day.
The Chinese People's Volunteer Army (PVA), often referred to as the Red Chinese Army, crossed the border into North Korea during the Korean War in late October 1950. This occurred after a series of military successes by United Nations (UN) forces, primarily composed of South Korean and U.S. troops, which had pushed North Korean forces back towards the Chinese border
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President Harry S. Truman relieved General Douglas MacArthur of his command on April 11, 1951. This decision was made during the Korean War due to a disagreement between the two leaders regarding the conduct of the war and the strategic approach to dealing with the conflict. General MacArthur had publicly expressed his desire to expand the war into China, which conflicted with Truman's policy of containment. As a result, Truman made the difficult decision to remove MacArthur from his position as the commander of United Nations forces in Korea.
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