UN forces retreated to Suwon in the west, Wonju in the center, and the territory north of Samcheok in the east, where the battlefront stabilized and held. The PVA had outrun its logistics capability and thus were unable to press on beyond Seoul as food, ammunition, and matériel were carried nightly, on foot and bicycle, from the border at the Yalu River to the three battle lines. On 25 late January, upon finding that the PVA had abandoned their battle lines, Ridgway ordered a reconnaissance-in-force, which became Operation Thunderbolt. A full-scale advance fully exploited the UN's air superiority, concluding with the UN forces reaching the Han River and recapturing Wonju.
UN forces retreated to Suwon in the west, Wonju in the center, and the territory north of Samcheok in the east, where the battlefront stabilized and held. The PVA had outrun its logistics capability and thus were unable to press on beyond Seoul as food, ammunition, and matériel were carried nightly on foot and bicycle, from the border at the Yalu River to the three battle lines. On 25 late January, upon finding that the PVA had abandoned their battle lines, Ridgway ordered a reconnaissance-in-force, which became Operation Thunderbolt. A full-scale advance fully exploited the UN's air superiority, concluding with the UN forces reaching the Han River and recapturing Wonju.