South Korea was established in the zone occupied by the United States
North Korea attacked South Korea. The event that followed is known as the Korean War
North Koreans push South Koreans and UN troops south to the perimeter of Pusan
Un troops under MacAuthur land at Inchon and move north from Pusan. This two pronged attack drives the North Koreans out of South Korean. Un troops then continue into North Korea, take Pyongyang, and anvance to the Yalu River.
The Chinese intervene and force UN troops to retreat across the 38th parallel
North Korea and South Korea sign an Armistice ending the war