The A Sầu Valley was a vital corridor for moving military supplies coming from the Ho Chi Minh Trail and was used by the People's Army of Vietnam (PAVN) as a staging area for numerous attacks in northern I Corps.

[1]: 607–8 On 4 August 1968 helicopters operating from Firebase Birmingham landed the first elements of the 1st Brigade, 101st Airborne Division in the valley near the abandoned A Lưới Camp.

[1]: 608 Also on 10 August a misplaced air strike hit Company D, 2nd Battalion, 327th Infantry Regiment, killing seven and wounding fifty-four men.

[1]: 608 On 16 August, two Long-range reconnaissance patrol teams and elements of Company C, 326th Engineer Battalion, laid delayed fuse mines and sensors (connected to Firebase Berchtesgaden) at the western passes into Laos to impede and monitor PAVN movement.

[1]: 608–9 This article incorporates public domain material from websites or documents of the United States Army Center of Military History.