Division and on the entire front of the 24th Division. The 179th Division seized Hill 664, the highest ground in the 24th Infantry sector, but failed in daylong attacks to dislodge the regiment and two reinforcing battalions of the 27th Infantry from a new line established in the foothills of the high feature. Forces of the 80th and 59th Divisions kept the 24th Division's front under pressure all day, but only the 80th attacking the 19th Infantry made any penetrations, all shallow. Counterattacks by regimental reserve forces eliminated all of them. Of more concern was a visible enemy buildup in front of the division, particularly ahead of the 21st Infantry on the right flank. To the left of the Glosters, the 64th Army had shown little of the clumsiness with which its 192nd Division opened operations against the ROK 1st Division. Driving out of its shallow bridgehead inside the Imjin River's Korangp’o-ri bend at midnight on the 23rd, the 192nd Division slowly, but persistently, forced the 12th Regiment at the right of the ROK line to give ground. The pressure on the ROK increased around dawn, after the 190th Division crossed the Imjin at several points southwest of Korangp’o-ri town and sent units down the boundary between the ROK 11th and 12th Regiments. Also crossing the Imjin during the night in the Korangp’o-ri bend area, the 189th Division of the 63rd Army advanced southeast on a course taking it into the gap between the ROK 12th Regiment and the Gloster battalion on Hill 235. By noon a battalion leading the attack of the 190th Division drove a wedge more than deep between the 11th and 12th Regiments. General Kang countered by sending a tank-infantry force, two battalions of his reserve 15th ROK Regiment and Company A, 73rd Heavy Tank Battalion against the penetration. By evening the task force drove out the PVA and established defensive positions in the gap that had been opened between the 11th and 12th Regiments. By that time the 192nd Division had pressed back the 12th Regiment roughly to the southwest of its original positions, widening by the same distance the gap between the ROK division and the Gloster battalion on Hill 235. The 189th Division, after brushing the right flank of the 12th Regiment, meanwhile began passing through the widening gap between the ROK and Glosters. As the 12th Regiment gave ground during the afternoon,