The National Liberation Front of South Vietnam (or Viet Cong) won a major battle of Bengoa against the armies of the US and South Vietnam. Following the recommendations of the EE.UU, the South Vietnam Army had plans to attack Viet Cong’s position without knowing that its rival was aware of them. When the time came, he beat the Ho Chi Minh battalions, knocking down several Yankee helicopters. The United States became more involved in the war after failure. On the image, a postage stamp of Vietnam.