new battleship with passive and active anti-aircraft defences against contemporary aircraft, being equipped with the advanced HACS, although it was largely inoperable during the battle. Combined with the earlier raid on Pearl Harbor, this left the Allies with only three operational capital ships in the Pacific Theatre: the three aircraft carriers , , and . However, these events did prompt the Allies and the US Navy in particular to realise the potency of aircraft, and their carriers were instrumental in the counterattack. The ships today The wrecks of the two ships were found after the war, Repulse in 183 feet (56 m) of water, and Prince of Wales in 223 feet (68 m). Both are in a nearly upside-down position. Buoys were attached to the propeller shafts, and flags of the Royal Navy are attached to the lines and are regularly changed by divers. These Royal Navy wrecks are Crown property. Prince of Wales bell was removed from the wreck in 2002 by an authorised team of Royal Navy and British civilian divers in response to fears it would be stolen by unauthorised divers. The bell is now on display at the Merseyside Maritime Museum in Liverpool. It is a tradition for every passing Royal Navy ship to perform a remembrance service over the site of the wrecks. In May 2007, a survey of the exterior hull of Prince of Wales and Repulse was conducted. The expedition's findings sparked considerable interest among naval architects and marine engineers around the world, because they detailed the nature of the damage to Prince of Wales and the location and number of torpedo hits for the first time. The findings contained in the initial expedition report and later supplementary reports were analysed by the SNAME (Society of Naval Architects and Marine Engineers) Marine Forensics Committee and a resultant paper was drawn up entitled "Death of a Battleship: A Reanalysis of the Tragic Loss of HMS Prince of Wales This paper was subsequently presented at a meeting of RINA (Royal Institution of Naval Architects) and IMarEST (Institute of Marine Engineering, Science & Technology) members in London by William Garzke. In October 2014, The Daily Telegraph reported that Prince of Wales and Repulse were being "extensively damaged" with explosives by scrap-metal dealers. Memorial A memorial was dedicated on 10 December 2011 at The National Memorial Arboretum, the UK's national site of remembrance at Alrewas, near Lichfield,