Part of the Vietnam War (1966)
| Operation Jay | |||||||
|---|---|---|---|---|---|---|---|
| Part of Vietnam War | |||||||
| |||||||
| Belligerents | |||||||
 United States |
 North Vietnam | ||||||
| Commanders and leaders | |||||||
| Col. Donald W. Sherman |
| ||||||
| Units involved | |||||||
|
2nd Battalion, 4th Marines 2nd Battalion, 1st Marines 3rd Battalion, 4th Marines |
802nd Battalion 806th Battalion 812th Battalion | ||||||
| Casualties and losses | |||||||
| 24 killed | U.S. body count: 475 killed | ||||||
Operation Jay was a U.S. Marine Corps and Army of the Republic of Vietnam (ARVN) search and destroy operation on the Street Without Joy, northern Thừa Thiên Province, lasting from 25 June to 2 July 1966.