 On 25 May, Company H, 2/26th Marines engaged a large PAVN Company at the base of Hill 117, 5 km west of Con Thien.Company H joined by Company K, 3/4th Marines made repeated advances up the hill against the PAVN with heavy fighting lasting throughout the day and costing 14 Marines and corpsmen killed and 92 wounded, while claiming 41 PAVN were killed.Marine air and artillery pounded the top of the hill throughout the night, and a new assault was planned for the morning of 26 May, but PAVN fire brought down a UH-1E, injuring the command element, and the assault was postponed until 27 May when Companies E and F, 2/26th Marines and 3/4th Marines secured the hilltop with no resistance.