Opposition to United States involvement in the Vietnam War on. As public support decreased, opposition grew. The Gallup News Service began asking the American public whether it was a "mistake to send troops to Vietnam" in August 1965. At the time less than a quarter of Americans polled, 24%, believed it was a mistake to send troops to Vietnam while 60% of Americans polled believed the opposite. Three years later, in September 1968, 54% of Americans polled believed it was a mistake to send troops to Vietnam while 37% believed it was not a mistake. A 1965 Gallup Poll asked the question, "Have you ever felt the urge to
1971 in the Vietnam War Chenla II was a major military operation conducted by the Cambodian military (then known as FANK) during the Cambodian Civil War. The Cambodian military failed to dislodge the communist North Vietnamese Army and Viet Cong from territory and suffered heavy casualties. Operation Jefferson Glenn was the last major ground operation in which U.S. troops participated in the Vietnam War. Three battalions of the 101st Airborne patrolled the area west of the city of Huế, called the "rocket belt," to try to prevent communist rocket attacks. The Americans were gradually replaced by soldiers of the South Vietnamese army. The Americans and