the way for amphibious assaults. Surviving YMSs were reclassified as AMS in 1947, given names, and re-rated as mine warfare ships; in 1955 they received the new type symbol MSC(O), changed to MSCO in 1967. These ships bore much of the mine warfare burden in Korea, formed a major portion of U.S. Navy minecraft strength through the 1950s, and provided underway training for Naval Reservists in the 1960s. A number of YMSs were transferred to other navies during or after the war. During Project Hula, the United States secretly transferred 31 of them to the Soviet Union between 17 May and 3 September 1945, and some of these saw action in the Soviet Navy during Soviet military operations against the Japanese between 9 August and 5 September 1945. The transfer of five more was canceled when transfers halted on 5 September 1945. One, T-610 (ex-), sank in 1945 while in Soviet service, and the Soviet Union transferred two, T-605 (ex-) and T-611 (ex-), to the People's Republic of China after striking them from the Soviet Navy list in 1955; during 1955 and 1956 the other 28 were scrapped by the Soviet Union or destroyed off its coast by mutual agreement between the two countries. Five YMSs served in the German Navy in different functions for tests, trials, and training; all of them had a civilian crew and were decommissioned between 1975 and 1988. YMS-327 last YMS in service , originally YMS-327, the last of her kind in U.S. service, was struck from the Navy List in November 1969. See also YMS-1-class minesweeper BYMS-class minesweeper References External links Auxiliary Motor Minesweeper (YMS) Mine warfare vessel classes Minesweepers of the United States Navy Auxiliary City Island, Bronx Ships built in City Island, Bronx