Monegan closed on the lead tank and wrecked it with one 3.5-inch projectile. Approaching the second T-34 under intense fire, he paused and took aim with imperturbability. Again his rocket connected with a roar, and the black hulk on the road turned into a blazing furnace. Silhouetted against the hillside, the Marine leveled his weapon at a third armored vehicle just as it was pivoting around to retreat. But at this moment an enemy machine gun found the mark, and Monegan--killer of tanks--fell dead. Although the North Korean attack was thus smashed at the outset, fighting along the highway continued until daylight. In addition to the two T-34s destroyed, another was captured intact with its crew. The 11th Marines closed the “back door” of the highway with a curtain of high explosive, thereby sealing the fate of the Red battalion. Dawn of 20 September revealed a scene of utter ruin across the Marine front. The highway was littered with burnt NKPA trucks, tanks, and equipment. Heaped on the road, in ditches, and along hillsides were 300 enemy dead.[341] [341] Marine losses were surprisingly small, although the exact number cannot be determined. In the whole course of 20 September, 2/1 sustained four KIA and 32 WIA, but these figures included losses during the Marine advance after the NKPA counterattack. _Recapture of Hills 80 and 85_ For the most part, fighting around Yongdungpo on 20 September was a contest of the giants. Supporting arms of both sides exchanged heavy blows, and the 1st Marines reported with business-like frankness that it was “... leveling the southern part of Yongdungpo, which is infested with enemy.” North Korean mortars, tanks, and field pieces pumped hundreds of rounds out of positions in the center of town and the eastern outskirts. Marine planes and howitzers replied by smothering Red concentrations and emplacements with literally thousands of missiles of all types. The 4th Battalion, 11th Marines, commanded by Major William McReynolds, fired 28 concentrations in the course of the day; and Lieutenant Colonel Merritt Adelman’s 2d Battalion expended 1,656 rounds in 21 missions. It was the precision firing of these two units which had supported 2/1 so effectively during the pre-dawn counterattack.[342] [342] 1st MarDiv _SAR_, Annex Sugar Sugar.