Soon after the Soviet takeover of Eastern Europe, China became Communist in 1949. The Americans had always regarded China as their outpost in the East. A massive Communist stronghold had appeared. Furthermore, spies informed Truman that Stalin was using Cominform to help Communists win power in other parts of the world. Many believed the Domino Effect, where Communism spread from one country to another like wildfire. When South Korea was invaded in 1950, many thought that only military action would do to stop the world from becoming Communist.
…
