Part of the Vietnam War (1970)
| Operation Chicago Peak | |||||
|---|---|---|---|---|---|
| Part of the Vietnam War | |||||
| |||||
| Belligerents | |||||
 United States South Vietnam |
 North Vietnam | ||||
| Commanders and leaders | |||||
|
John J. Hennessey Sidney Bryan Berry Ngô Quang Trưởng |
| ||||
| Units involved | |||||
|
1st Brigade, 101st Airborne Division 3rd Regiment, 1st Infantry Division |
| ||||
| Casualties and losses | |||||
|
3 killed | US body count: 97 killed | ||||
Operation Chicago Peak was a joint U.S. Army and Army of the Republic of Vietnam (ARVN) military operation during the Vietnam War designed to keep pressure on the People's Army of Vietnam (PAVN) units in the A Sầu Valley and prevent them from mounting any attacks on the neighboring coastal provinces.