In April 1951, the disappearance of HM submarine Affray knocked news of the Korean War and Festival of Britain from the front pages of national newspapers. Affr

'The Ministry of Defence does not comment upon submarine operations' is the standard response of officialdom to enquiries about the most secretive and mysteriou

Royal Navy submarine HMS Poseidon sank in collision with a freighter during routine exercises in 1931 off the Chinese coast. Thirty of its fifty-six-man crew sc

A new book from this bestselling author covering the events at sea in the early years of World War II, in which he has compiled comprehensive research and insig