The operation commenced on 5 September and for the first 11 days saw only small skirmishes. On 8 September a unit from the 1st Battalion, 327th Infantry Regiment engaged a 7-man patrol from the People's Army of Vietnam (PAVN) 18B Regiment, killing 4 and capturing 3. The prisoners revealed that their unit was planning to attack the hamlet of Tu Bong and so the 2nd Battalion, 502nd Infantry Regiment was deployed there to forestall any attack.:255
At 02:00 on 17 September, under cover of heavy rain more than 100 Viet Cong (VC) attacked the night defensive position of Company B 2/327th, targeting the command post with satchel charges. The attack killed 10 soldiers including the Company commander, the executive officer and the forward observer. The Company had occupied the same position for several days and despite VC probes the Company commander had failed to move his command post, this carelessness prompted BG Willard Pearson to order that in future field command posts should be relocated every 48 hours.:255
Operation Seward officially concluded on 25 September, Viet Cong losses were 239 killed by body count from the 18B Regiment, 95th Regiment and 307th Battalion, U.S. losses were 27 killed. BG Pearson regarded the operation as a success because 90 percent of the rice crop had been harvested with minimal interference.:256
This article is a list of known military operations of the Vietnam War in 1966, conducted by the armed forces of the Republic of Vietnam, the United States and their allies.List of allied military operations of the Vietnam War (M–S)
This article is a list of known military operations of the Vietnam War, a war fought by the United States to try to stop communism in Southeast Asia, conducted by the armed forces of the Republic of Vietnam, the United States and allies consisting of Australia, New Zealand, Thailand, South Korea, and the Philippines. This is not a complete list. Operations are currently listed alphabetically, but are being progressively reorganised as a chronology.
Easter Offensive (1972)
Post-Paris Peace Accords (1973–1974)