Role of the United States in the Vietnam War in PAVN/NLF casualties after which a decisive (or at least political) victory would be possible. It is widely held that the average U.S. serviceman was nineteen years old, as evidenced by the casual reference in a pop song ("19" by Paul Hardcastle); the figure is cited by Lt. Col. Dave Grossman ret. of the Killology Research Group in his 1995 book "" (p. 265). However, it is disputed by the Vietnam Helicopter Flight Crew Network Website, which claims the average age of MOS 11B personnel was 22. This compares with 26 years of age for those who participated in World
1971 in the Vietnam War role in the massacre. A confidential U.S. Army directive ordered the interception and confiscation of anti-Vietnam War and other dissident material being sent to U.S. military personnel in South Vietnam. Lt. William Calley was convicted of murder and sentenced to life imprisonment and hard labor at Fort Leavenworth for his role in the My Lai massacre. President Nixon ordered Lt. Calley, convicted and sentenced to life imprisonment for his role in the My Lai massacre, to be transferred from Leavenworth prison to house arrest. Khe Sanh Combat Base, activated to provide U.S. support to the Lam Song 719 operation, was