"Manchester" then steamed with her task group around the peninsula to support the invasion at Wonsan. Arriving 10 October, she commenced shore bombardment and patrol duties in support of the minesweeping operations in the area while planes from TF 77 conducted raids against North Korean vessels, road and rail centers, warehouses, and supply depots as far north as Songjin. The U.N. Forces soon reached the Yalu River and, as the heavy fighting appeared to be over, "Manchester" was reassigned, 29 October, to TF 72, then patrolling the Taiwan Straits. This patrol duty was ended shortly thereafter by the full scale intervention of Communist Chinese troops in Korea. On 3 December, the cruiser rejoined TF 77 and steamed to Hungnam to support the complete evacuation of that port and the demolition of its facilities. Completing this operation, the task force continued to defend U.N. units, effecting their safe withdrawal from untenable positions.