Operation Lam Son 719

February 8 – March 25, 1971 · Laos

South Vietnamese troops, supported by US air power, invaded Laos to cut the Ho Chi Minh Trail. North Vietnamese forces drove them back with heavy losses.

On the map Contemporaries

South Vietnam and allies

North Vietnam and allies

Other

South Vietnam

United States

Laos

North Vietnam

Viet Cong

Pathet Lao

Creighton Abrams military commander

Du Quoc Dong military commander

Hoang Xuan Lam military commander

Le Nguyen Khang military commander

Le Quang Dao military commander

Lê Trọng Tấn military commander

Strength and losses

Laos Strength c. 4,000

South Vietnam Killed 1,146–8,843 · Wounded 4,236–12,420 · Missing 1,767

United States Killed 215 · Wounded 1,149 · Missing 38

Units

I Corps (South Vietnam) XXIV Corps (United States) 2nd Division (South Vietnam) 5th Infantry Division (United States) ARVN 1st Division Americal Division 11th Infantry Brigade (United States) Republic of Vietnam Airborne Division Republic of Vietnam Marine Division Vietnamese Rangers Seventh Air Force

2nd Division (Vietnam) PAVN 304th Division

308th Infantry Division (Vietnam) 320th Division (Vietnam) 324th Division (Vietnam)