The US military intervention in Vietnam from 1965 to 1973, which is popularly, called The Vietnam War recorded the killing of almost 200-250,000 South Vietnamese soldiers whereas 58,200 US soldiers were reported to be dead or missing in action. The staggering amount of human lives lost is reason enough for attempting an ethical explanation of the event.
It made the US government believe in a concept known as the domino theory. The paramount idea in this discourse was that if one Asian nation fell to the leftist ideology of communism, others would quickly follow.
Historically speaking, the year of 1954 had seen the Communist forces in the north of Vietnam, led by Ho Chi Minh, defeat the colonial French rule in Vietnam. Ho Chi Minh chartered a policy whereby Vietnam was divided into a pro-American Southern and a communist northern bloc with a demilitarised zone (DMZ) in the middle. Though, Ho Chi Minh had intended to bring the two sections under one government by a common rule of the ballot, it never really happened. On the contrary, the communist forces began a guerrilla war against the south.
This tempted the US government to launch a battle in Vietnam in order to curtail what it believed to be the rise of Soviet communism. If from the point of view of Utilitarianism, the ethical doctrine that holds that the moral worth of an action is solely determined by its contribution to overall utility, we make an effort to justify the war, we realise that even then the action of the US government was really uncalled for. ...