Task Force Oregon
| Task Force Oregon | |
|---|---|
| Active | 20 April-September 1967 |
| Country |
 United States of America |
| Branch |
 United States Army
|
| Size | 3 Infantry Brigades |
| Part of | Regular Army |
| Garrison/HQ | Chu Lai Base Area |
| Engagements | Vietnam War |
| Commanders | |
| Notable commanders |
MG William B. Rosson MG Richard T. Knowles MG Samuel W. Koster |
Task Force Oregon, was a United States Army division-sized unit composed of 3 separate infantry brigades, active in Quảng Ngãi and Quảng Tín Provinces, South Vietnam from April to September 1967 when it was redesignated the 23rd Infantry Division (Americal).
In early April 1967 MACV gave instructions to commence the Task Force Oregon plan, which involved the movement of an Army task force to Đức Phổ and Chu Lai area to allow the 1st Marine Division to move north to Danang to support the 3rd Marine Division in northern I Corps.
COMUSMACV General William Westmoreland appointed his chief of staff MG William B. Rosson to command the unit, designated Oregon after Rosson's home state. MG Rosson reported directly to III Marine Amphibious Force which controlled I Corps, however he was generally free to manoevure his brigades subject to maintaining the defense of Chu Lai Air Base.
Task Force Oregon originally comprised the following units:
As more U.S. Army units arrived in South Vietnam, the 3rd Brigade, 25th Infantry Division and the 1st Brigade, 101st Airborne Division were released back to their parent divisions and two newly arrived brigades, the 11th Infantry Brigade and the 198th Light Infantry Brigade were assigned to Task Force Oregon. In September 1967 Task Force Oregon was redesignated the 23rd Infantry Division (Americal).
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