Luckily the enemy did not elect to attack the overcrowded perimeter on the night of the 28th. Every warming tent was packed to capacity, and a CCF mortar round could hardly have landed anywhere without doing a good deal of damage. After a quiet night the Chinese began the new day by digging emplacements in the hills to the west under harassing fire from F Company. The howitzers of Easy Battery and the mortars of 2/1 provided supporting fires for Task Force Drysdale when it moved out at 0945 followed by a convoy of Division Headquarters troops. A platoon of Easy Company, 2/1, went along with corpsmen and ambulances to assist in evacuating any early wounded back to Koto-ri. Stubborn CCF resistance resulted in casualties from the outset, and it was 1600 before the Easy Company escort platoon got back to the perimeter. The Chinese, keeping the perimeter under observation all day, evidently concluded that the northern rim, defended by Easy Company, offered the best opportunity for a penetration. Marine air strikes were called on the Chinese swarming over the near-by high ground during the last minutes of daylight, but enemy mortar rounds hit Easy Company at 1745. They were followed by bugle calls and whistle signals as the CCF infantry attacked from the high ground to the northeast. The assault force was estimated at company strength, with the remainder of a battalion in reserve. Unfortunately for the Chinese, they had made their intentions clear all day with unusual activity in the surrounding hills, and Easy Company was not surprised. Major Clarence J. Mabry, the 2/1 executive officer, could be heard above the machine guns as he shouted encouragement to Marines who poured it into the advancing Communists. They came on with such persistence that 17 managed to penetrate within the lines, apparently to attack the warming tents.[467] All were killed. In addition, about 150 CCF bodies lay in front of the sector when the enemy withdrew at 1855, after suffering a complete repulse. [467] LtCol R. E. Lorigan Comments, 16 May 56. It was conjectured that the Chinese had interpreted the return of the Easy Company platoon late that afternoon as an indication that a gap in the line needed to be hastily plugged. But the supposed weak spot did not materialize, and at 1935 the enemy signed off for the night after pumping four final mortar rounds in the vicinity of the Battalion CP without doing any harm. Losses of 2/1 for the day were six KIA and 18 WIA, total CCF casualties being estimated at 175 killed and 200 wounded. Ten heavy machine guns, seven LMGs, 12 Thompson submachine guns, 76 rifles, four pistols, and 500 grenades were captured. That was all at Koto-ri, where Recon Company arrived during the day to add its weight to the defense. But during intervals of silence the sound of heavy and continuous firing to the north gave proof that Task Force Drysdale was in trouble. _Convoy Reinforced by Marine Tanks_