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.
What Happened to Us wondrous interior décor". He also commended Mauboy for choosing Australian talent to direct the video instead of American directors, which she had used for her previous two music videos. Since its release, the video has received over two million views on Vevo. Mauboy performed "What Happened to Us" live for the first time during her YouTube Live Sessions program on 4 December 2010. She also appeared on "Adam Hills in Gordon Street Tonight" on 23 February 2011 for an interview and later performed the song. On 15 March 2011, Mauboy performed "What Happened to Us" on "Sunrise". She also performed