On March 8, 1965, President Johnson deployed 3,500 U.S. Marines near Da Nang in South Vietnam, signaling the first U.S. troops' arrival in Vietnam.
US Troops in Vietnam: The Arrival
Going to War in 1965 with the Army You Have
Today in military history: US sends combat troops to Vietnam
11,810 Vietnam War Soldiers Stock Photos, High-Res Pictures, and Images - Getty Images
Vietnam War: Causes, Facts & Impact
This Air Force general is rallying his troops for war with China
First US Combat Troops
Where are U.S. active-duty troops deployed?
50 years ago, Nixon announced the withdrawal of US troops from Vietnam