This Operational Report-Lessons Learned covers the reporting period 1 August-31 October 1967. During this period the 1st Infantry Division continued to conduct combat operations designed to locate and destroy Viet Cong (VC) and North Vietnamese Army (NVA) forces and installations in the 3 Corps Tactical Zone (CTZ). AO STRIKE operations continued into this period with the division employing four battalions on a rotational basis under the OPCON of the 1st Brigade and the overwatch of VIETNAM Marine Corps (VNMC) Task Force operations in the area of operations (AO) until the AO was released to the 9th Infantry Division on 1 September. Operation PORTLAND, a search and destroy operation, was conducted from 12 August to 21 August in response to intelligence information indicating concentrations of VC/NVA forces in the area northeast of MINH THANH and in the area west and northwest of LAI KHE. No significant contact with the enemy resulted, however, recently occupied base camps were discovered. Operation BLUEFIELD 2, conducted 23 September to 28 September, opened Route 301 and cleared the jungle 100 meters on both flanks of the road from BO LA to BAU BANG, without significant enemy activity. Operation SHENANDOAH 2 was initiated 29 September and continues.