The attack on the 21st was launched astride the railroad by the 3d Battalion to the north and the 1st Battalion between the railroad and the river. After passing through the 2d Battalion, Taplett’s men seized three hills and by dusk were digging in on Hill 216, about six miles east of Hill 125 and the ferry landing site.

The 1st Battalion had meanwhile advanced to Hill 96, about 3,000 yards southeast of yesterday’s Objective DOG, now occupied by the 2d Battalion in reserve. Further gains of some 2,500 yards to the southeast took the battalion to Hill 68, between the railroad and river, which was seized and held for the night.

Enemy resistance ranged from light to moderate in both battalion zones. Between them, the 1st Battalion of the KMCs moved up to Hill 104, just north of the railroad and south of Sachon Creek.316

This was the situation across the river at nightfall on the 21st. The 5th Marines was in position to grapple with the enemy for possession of Seoul. Hill 104, in the center of the 5th Marines front, was only 5,000 yards west of the Government Palace in the northwest section of the city. Less than three miles, yet officers and men alike realized that they would have to fight for every inch of the way. If anyone had any doubts, he had only to watch the flashes of gunfire stabbing the night sky to the southeast, and he had only to listen to the unremitting roar of gunfire. For at Yongdungpo the 1st Marines had been slugging it out with the enemy for the last three days in a battle for the rambling industrial suburb.