reorganization of the Mine Force, Pacific Fleet, Mine Division 92 became Mine Division 71. In January 1958, the division again deployed to the Western Pacific for operations under operational control of Commander Mine Flotilla 1. The division returned to Long Beach in July 1958. In September, all ships participated in the minesweeping phase of an amphibious exercise at Oceanside, California. The remainder of 1958 was spent in holiday leave and upkeep. Mine Division 72 Mine Division 72 was reinforced with five non-magnetic wooden-hulled s. They were , , , , and . These ships were constructed on the West Coast of the United States and were commissioned in late 1954 and early 1955. The ships were originally assigned to Mine Division 94, however in 1957 that unit was merged into Mine Division 72. Originally the ships were commissioned as "AM" with their particular hull numbers assigned. On 1 January 1955 the ships in Mine Division 72, as with other ships of their type, were redesignated MSO (Minesweeper Ocean). Mine Division 73 Mine Division 73 was composed of , , , and . They were commissioned in the summer of 1955, spring and summer of 1956. Mine Division 73 came into being in January 1957. In February 1957, Mine Division 73 was making preparation for deployment to the Western Pacific, departing Long Beach on 4 March 1957. Routine minesweeping operations and several joint minesweeping exercises with the Chinese and Korean navies were conducted while deployed. The division left the shipyard in February 1958 and underwent refresher and mine countermeasures training. Decommissioning Commander Mine Squadron 7 was located in Building 145, Long Beach Naval Station, when it was disestablished on 1 June 1968. External links U.S. Navy COMINEWARCOM website Military.com entry for Mine Division 71 Navy MSO Association website List of MSO class ships, with statistics Navy Minesweepers Webring Mine Division 91 article in All Hands magazine, Nov 1966 COMINRON SEVEN ship movements Ship squadrons of the United States Navy Military units and formations disestablished in 1968 Naval mine units and formations