The US fought for the South against the Northern Communists.
Korean War.
The UN.
1950-1955
The Korean War.
From 1950 to 1953
During the Korean War Japan was occupied by the United States and did not fight on either side, but was used by the US to resupply the United Nations troops in Korea
The US fought on the Allied, or UN side in Korea.
South Koreans.
South Korea
No president fought in the Korean War. Jimmy Carter was in the navy while the war was going on but did not get close to Korea.
The Korean War (Korean Conflict)
World War 1, World War 2 and I think the Korean War too.