9-й корпус
Late on 26 March, as it became obvious that the PVA were backing away from the 3rd and 25th Divisions, General Ridgway had ordered I and IX Corps to continue to the "Benton Line". As originally conceived, the IX Corps' advance to "Benton" was limited to General Hoge's western forces and was intended simply to protect I Corps' right flank. But Ridgway had since modified his plan of operations, widening the advance to include the entire IX Corps and all other forces to the east.