September 18

This Day in History

Vietnam War

Sep 18, 1964:

North Vietnamese Army begins infiltration

South Vietnamese officials claim that two companies from the North Vietnamese army have invaded South Vietnam. A battle resulted in Quang Tri Province, just south of the Demilitarized Zone, but the North Vietnamese forces were defeated with heavy casualties. Since North Vietnamese main force units had not been seen in South Vietnam before, U.S. military advisers questioned whether these were actually North Vietnamese troops, but in fact Hanoi had ordered its forces to begin infiltrating to the South. This marked a major change in the tempo and scope of the war in South Vietnam and resulted in President Lyndon Johnson committing U.S. combat troops. North Vietnamese forces and U.S. troops clashed for the first time in November 1965, when units from the newly arrived 1st Cavalry Division engaged several North Vietnamese regiments in the Battle of the Ia Drang Valley in the Central Highlands.

Fact Check We strive for accuracy and fairness. But if you see something that doesn't look right, contact us!

What Happened on Your Birthday?

Pick a Date

Shop HISTORY

  • Vietnam in HD DVD Set

    Vietnam in HD DVD Set

    Their story is in danger of being lost to history. This six-hour miniseries spans the massive initial troop build-up in 1965 to the fall of Saigon a decade later.

  • WWII in HD DVD Set

    WWII in HD DVD Set

    The only people to see the war like this were the ones who lived it. Until now… Own this best-selling series today!

  • Battle 360: The Bloody Battle of Guadalcanal DVD

    Battle 360: The Bloody Battle of Guadalcanal DVD

    Own this chronicle of the epic showdown with Japanese forces at Guadalcanal, one of the most critical battles in WWII.