Part of the Vietnam War (1969–1971)
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| Operation Washington Green | |||||||
|---|---|---|---|---|---|---|---|
| Part of the Vietnam War | |||||||
| |||||||
| Belligerents | |||||||
 United States South Vietnam |
 North Vietnam Viet Cong | ||||||
| Commanders and leaders | |||||||
| H.S. Cunningham |
| ||||||
| Units involved | |||||||
|
173rd Airborne Brigade 3rd Battalion, 506th Infantry Regiment 2nd Division22nd Division Regional Force Popular Force | 3rd Division | ||||||
| Casualties and losses | |||||||
| 227 killed | US body count: 1957 killed | ||||||
Operation Washington Green was a security and pacification operation during the Vietnam War conducted by the 173rd Airborne Brigade in Bình Định Province from 15 April 1969 to 1 January 1971.