On the night of 13/14 October 1939, the German commander of U-boat U-47, Günther Prien, steered past the sunken block ships and chains which inadequately protected the British naval base at Scapa Flow in the Orkney Islands. The U-Boat sank the old British World War I battleship HMS Royal Oak and then escaped into the North Sea. The loss of the Roya

This is a gripping account of the ill-fated RAF raid, on 3 May 1944, on the Panzer tank depot and military barracks at Mailly-le-Camp south of Rheims in northern France, part of the softening up process on German military targets, in preparation for the D-Day landings.