the San Diego area. On 26 April, she sailed for San Francisco via Port Hueneme, California. From 3 May to 2 July, Union underwent a regular overhaul at the Todd Shipyards Corp., Alameda, California. The ship returned to San Diego on 11 July and spent the summer in refresher training. On 1 October, Union joined Amphibious Squadron 1; and, on the 23rd, she departed for a sixth Western Pacific (WestPac) deployment. Union arrived at Yokosuka, Japan, on 10 November and underwent voyage repairs. She visited the Japanese ports of Osaka and Sasebo and celebrated Christmas at sea en route to Korea. While training Korean Marine Corps and Navy units, Union ushered in the New Year at Chinhae. In January 1955, Union proceeded to Subic Bay, Philippines, via Sasebo, Japan. After a restricted availability at Subic and a visit to Hong Kong, Union departed in February for the Tachen Islands where she and other ships assisted in the evacuation of Chinese Nationalist troops and refugee civilians. Having landed the evacuees at Keelung on 13 February, Union visited Hong Kong, Yokosuka, and Beppu, Japan. After loading men and equipment of the 1st Marine Division at Inchon, Union departed on 3 April for a quick turn-around trip to San Diego. She returned to Pusan, Korea, on 20 May and arrived back at San Pedro, California, on 12 June with Marine air group personnel and equipment. Union spent the month of January 1956 participating in Operation "Cowealex" which called for a landing on Umnak Island in the Aleutians. Rough weather necessitated changing the landing site to Unalaska Island in Makuskin Bay. The ship returned to San Diego on 9 February and conducted local operations. Union then left California en route to Pearl Harbor to participate in a landing exercise, "Hawrltlex 1–56" which concluded on 11 April. She arrived at San Diego on 23 April and spent the months until November taking part in local operations and undergoing upkeep. Late in August, Union made a brief trip to Vancouver, British Columbia, to represent the United States Navy in the Pacific National Exhibit. On 13 November 1956, the ship sailed for San Francisco and an overhaul at the San Francisco Naval Shipyard at Hunters Point. Having completed her regular overhaul, Union returned to San Diego on 27 January 1957 and conducted refresher training. She then took part in a number of amphibious exercises off Coronado Roads.