everybody knows there was a civil war in vietnam
They were having a civil war for many years... north against south.... and the US intervened in it... This is common knowledge... It's the history of the vietnam war.....
"In 1954, the Communists defeat the French, who have held Vietnam as a colony since the 19th Century. An International Peace Conference temporarily divides the country into North and South at the 17th parallel until elections can be held in 1956. North Vietnam is led by Moscow-trained Ho Chi Minh. In the South, Americans support the regime of the anti-Communist President Diem. Communists in the South form the National Liberation Front, also known as Vietcong. A civil war to unite the country is waged between rival factions. America sends advisers to help the villagers and train the South Vietnamese army in counter-insurgency. "