Rolling Thunder and the First Combat Troops
The war becomes America's own: sustained bombing of the North begins, and Marines wade ashore at Da Nang.
Quick facts
- Rolling Thunder begins
- 13 February 1965
- First combat troops land
- 8 March 1965, Da Nang
- Initial force
- about 3,500 Marines
- MACV commander
- General William Westmoreland
What happened
In February 1965, after a Viet Cong attack on a US base at Pleiku killed eight Americans, President Johnson ordered Operation Rolling Thunder, a sustained bombing campaign against North Vietnam that began on 13 February 1965 and would run for three years. On 8 March 1965 the first US ground combat troops, roughly 3,500 Marines, landed at Da Nang to defend the airbase there, the first American combat units committed to Vietnam rather than serving as advisers. Hundreds of thousands more troops followed within two years. General William Westmoreland, commanding MACV, pursued a strategy of attrition, seeking to kill more enemy fighters than Hanoi could replace.
Why it matters
This was the moment Vietnam became, in American terms, a war the United States was fighting rather than funding. The scale of the commitment, and the draft that sustained it, changed the war's politics at home as much as its conduct in the field.
How we know
The Office of the Historian's account, drawn from State and Defense Department records, dates Rolling Thunder's start and the first Marine landings precisely.
Sources
- Office of the Historian, U.S. Department of State. U.S. Involvement in the Vietnam War: the Gulf of Tonkin and Escalation, 1964 · Reputable sourcehistory.state.gov · The domain "history.state.gov" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
- U.S. Army Center of Military History. Chapter II: The Military Assistance Command, Vietnam: February 1962-July 1965 · General sourcewebdoc.sub.gwdg.de · Cited as a "reference" source (no stronger domain match). · Link is live and its text matches the event's key terms (Jul 2026)
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