At the same time, their Japanese opponents had yet to fully address the threat that these underwater marauders posed to the ...

A group of volunteers hope to restore a World War Two rescue boat that has been partly submerged for "close to 20 years".

Given the immense amount of shipping sunk by submarines during the Second World War, it is incredible to remind ourselves that as of mid-2021 only three ships have been sunk in combat by a submarine ...