from the decks of nearly all allied conventional carriers to this day and most LPH or STOVL carriers operated by the Soviet, Spanish, Italian, Japanese, British, and Thai navies. List of ASW carriers Aircraft carriers and helicopter carriers that had primary ASW duties from the mid-1960s onward. Argentine Navy – one ship (ex-Colossus class) ASW (retired/scrapped) fixed-wing CATOBAR S-2 and helicopters – one ship (ex-Colossus class) ASW (retired/scrapped) fixed-wing CATOBAR S-2 and helicopters Brazilian Navy – one ship (ex-Colossus class) ASW (retired/scrapped) fixed-wing CATOBAR and helicopters French Navy – one ship (ex-Colossus class) ASW (retired/scrapped) fixed-wing CATOBAR and helicopters Italian Navy one ship, ASW helicopter carrier 1985–1988, STOVL fighters and ASW helicopters carrier 1988–. Japan Maritime Self-Defense Force (2009–). ASW, utility, and sea mine clearing helicopters (2013–). ASW, utility, and sea mine clearing helicopters Royal Navy ; recommissioned in 1979 from reserve as a helicopter ASW carrier. (Retired and scrapped) ; Centaur-class aircraft carrier converted to helicopter ASW in 1976. (Sold to India, renamed ) – three ships Strike/ASW/Amphibious Assault STOVL and helicopters. These ships were originally designed as "through-deck cruisers" for the ASW role and command, but ended up also equipped with Harrier STOVL fighters for fleet defence against Soviet reconnaissance aircraft. After the Falklands War they were used as conventional, albeit light, fleet aircraft carriers in the power projection role. and retired/scrapped, converted to amphibious assault ship, then scrapped 2016. Royal Australian Navy – one ship (Majestic class) strike/ASW (retired/scrapped) fixed-wing CATOBAR and helicopters Royal Canadian Navy – one ship (ex-Majestic class) ASW (retired/scrapped) fixed-wing CATOBAR and helicopters Royal Netherlands Navy – one ship (ex-Colossus class) ASW (retired/sold to Argentina as Veinticinco de Mayo, scrapped) fixed-wing CATOBAR and helicopters Soviet/Russian Navy ; ASW helicopter support ship, large rear deck landing pad and hangar for 18 helicopters (retired/scrapped) Helicopters only cruiser/carrier; guided missile cruiser/limited air defense/ASW (retired/sold) STOVL and helicopters Spanish Navy – one ship (ex-Independence class) ASW helicopter carrier 1967–1976, STOVL carrier 1976–1989. Strike/ASW (retired/scrapped) STOVL and helicopters one ship STOVL fighters and helicopters 1988–2013 United States Navy – ASW carriers with fixed-wing and helicopter anti-submarine aircraft and AEW aircraft, although occasionally carried an A-4 Skyhawk detachment (4 aircraft) for daytime combat air patrol (retired/scrapped) fixed-Wing CATOBAR and helicopters , , and the LPH amphibious assault ships were given secondary roles of sea control meaning they would deploy with a modified air complement consisting of ASW helicopters and