History of Vietnam since 1945 unstable as no government could keep power for long. There were more coups, often more than one every year. The Communist-run Viet Cong expanded their operation and scored some significant military victories during this period. In 1965, US President Lyndon Johnson sent troops to South Vietnam to secure the country and started to bomb North Vietnam, assuming that if South Vietnam fell to the Communists, other countries in the Southeast Asia would follow, in accordance with the domino theory. Other US allies, such as Australia, New Zealand, South Korea, Thailand, the Philippines, and Taiwan also sent troops to South Vietnam.
First Chinese domination of Vietnam First Chinese domination of Vietnam The first Chinese domination is a period in Vietnamese history during which Vietnam was under Chinese rule from the north. It is the first of four periods of Chinese domination of Vietnam, the first three of which are almost continuous and referred to as ("Northern domination"). In 111 BC, the powerful Chinese Han dynasty conquered the Nam Việt (which in Chinese translates to "land of the southern barbarians") kingdom during its expansion southward and incorporated what is now northern Vietnam, together with much of modern Guangdong and Guangxi, into the expanding Han empire. Vietnamese resistance