The Vietnam War

The Vietnam War was a civil war between the north and south regions of Vietnam.

The Vietnam War was the U.S's opposition to the spread of communism, the U.S had a fear that if South Vietnam turned into a communist country then the surrounding countries would follow (the domino theory), until Asia was a giant communist landmass.
Why did the U.S get involved at all? The Truman doctrine states that the U.S assists all countries resisting communism.

After World War II, the French invaded and took control of Vietnam, this caused a disruption of peace in the lifestyle of the Vietnamese. At the time, Communists were hoping to spread their ideals onto smaller, weaker countries and took advantage of the despair.