Who: South Korea, North Korea, U.S.A, China,
What: North Korea invaded South Korea but the U.S.A defended them. Then China entered the war The reason the U.S. helped South Korea was because of the Truman Doctran.
Where: North and Soth Korea
When: From 1950 to 1953
Why: So North Korea could have more territory
Summary: North and South Korea, U.S.A., and China all fought in the Korean War. The U.S. protected South Korea because of the Truman Doctran.