The Korean War was a military conflict between North and South Korea that lasted from 1950 to 1953. It resulted in a stalemate, with a ceasefire and an approximate 38th parallel dividing the peninsula.
The war started on June 25, 1950, when North Korea invaded South Korea.
The United Nations, with the United States as the principal participant, came to the aid of South Korea.
China and the Soviet Union supported North Korea.
The war resulted in the loss of over 1 million lives, including civilians.
The 38th parallel dividing North and South Korea was established as a demilitarized zone (DMZ).
The Korean War was the Cold War's first "hot" conflict.
The Korean War was the first in which the United Nations played a major role in leading the fighting forces.
The Korean War is also known as the Forgotten War in the United States.
The Korean War also resulted in the mass migration of Koreans, with many fleeing to the south.
The war officially ended on July 27, 1953, with an armistice agreement, but a peace treaty was never signed, and the two countries are technically still at war.