Do sources B & C support the evidence of source A about the reasons for US involvement in South Vietnam?
Source A tells us that the reasons for the USA becoming involved in Vietnam were mainly because of the threat from communism which can be better explained through the Domino Theory. This was the idea that the countries of South East Asia were closely linked together and if one fell to communism the theory was that the others would also fall, like a row of dominoes. Source A says that Vietnam was important as a free country and its economy was essential that to of South East Asia. It also says that Vietnam’s political liberty is important and inspires others thus independence of Vietnam is crucial to the Free World.