Task Force Oregon commander MG Richard T. Knowles initially planned for the 196th Light Infantry Brigade to sweep the eastern portion of Base Area 117.

[2] On 12 August, a PAVN force believed to be from the 21st Regiment attacked an Army of the Republic of Vietnam (ARVN) Ranger Battalion 10 km north of Base Area 117.

Despite artillery and AC-47 fire the PAVN continued their assault for 2 hours before withdrawing, leaving 35 dead and 18 weapons, while U.S. losses were 5 killed.

[2]: 249–50 On 15 August, 1/327th Infantry was committed to the operation to search the southern area, making sporadic contact with PAVN units, usually in the late afternoon so that the air and artillery support was less effective and they could withdraw under the cover of darkness.

[2]: 252 This article incorporates public domain material from websites or documents of the United States Army Center of Military History.