3,500: Number of U.S. Marines sent to South Vietnam on March 8, 1965, to augment 25,000 U.S. military personnel already there as the Johnson administration began escalation efforts

4,000: Number of paratroopers of the 101st Airborne Division who joined U.S. forces in South Vietnam on July 29, 1965

550,000: Maximum number of U.S. forces stationed in South Vietnam at the war’s peak

58,226: Number of U.S. servicemen and women killed in action

153,303: Number of U.S. wounded by the end of the war in 1975

3 million: Estimated North Vietnam warriors and civilians killed during the war

Source: wikipedia.org