One of three improved Valiant Class Submarines, the Churchill Class was in services with the Royal Navy from the 1970's through to the 1990's. HMS Conqueror's place in history was quarantined when she sank the General Belgrano in 1982 during the Falklands War. Can be assembled with periscope and masts up or down as per the picture. The kit contains one hull and two Conning towers to give you that option.