The first authoritative history of the Submarine Service, the most secretive and mysterious of Britain’s armed forces, from the end of the Second World War to the present. As we come to decide whether to renew the nuclear deterrent, Hennessy and Jinks analyse the development of Britain’s submarine fleet, its capabilities, its weapons, its infrastructure, its operations and, above all – from the testimony of many submariners and the first-hand witness of the authors – what life is like on board for the denizens of the silent deep.