The Vietnam War is also known as the Indochina war, commonly known as the resistance war against America in china. North Vietnam, supported by the soviet union, china and other communist allies fought with south Vietnam which was supported by the US, south korea, Australia and Thailand. This essay will focus on showing why the US support of South Vietnam against the north is regarded as imperialism. Imperialism is a policy where a nation forcefully extends its authority or territory in other nations. It may be achieved by conquering territories or by having control on the politics and economy of another nation. The US flew back Ngo Ding, a vietnamees who lived in America and made him the leader of the people in south Vietnam. Through this