 On 4 September, a platoon from Company A, 61st Infantry Regiment was sent to the relief of Company M 3/9 Marines which was engaged in battle with a reinforced PAVN company in bunkers west of Con Thien.Joined by a reaction force from Company C, 61st Infantry, and supported by artillery and airstrikes, the American units claimed to have killed more than 20 PAVN for 6 US killed and 55 wounded in the two-and-one-half-hour battle that followed.On 11 September, Company D, 11th Infantry engaged a PAVN force of unknown strength from the 27th Independent Regiment occupying bunkers near the "Market Place," 4 km northeast of Con Thien.