Battle of the Ch'ongch'on River

Hoping to repeat the success of the earlier First Phase Campaign, the PVA 13th Army first launched a series of surprise attacks along the Ch'ongch'on River Valley on the night of November 25, 1950 at the western half of the Second Phase Campaign, effectively destroying the Eighth United States Army's right flank while allowing PVA forces to move rapidly into UN rear areas. In the subsequent battles and withdrawals during the period of November 26 to December 2, 1950, although the US Eighth Army managed to avoid being surrounded by PVA forces, the PVA 13th Army were still able to inflict heavy losses onto the retreating UN forces which had lost all cohesion. In the aftermath of the battle, the US Eighth Army's heavy losses forced all UN forces to retreat from North Korea to the 38th Parallel.