1. What were the reasons for American involvement in the Vietnam War?
The idea that countries could fall to communism like dominoes crashing one after the other became entrenched in US foreign policy thinking. As you have seen in the previous two case studies - Korea and Cuba, the US believed it must act to contain the spread of communism and to prevent countries falling. This domino effect notion identified Vietnam as the key domino that must not be allowed to fall if Laos, Cambodia,...