“A gripping narrative” of the German submarines that nearly changed the outcome of World War II from the author of Dönitz and the Wolf Packs (Naval Review)

The submarine was one of the most revolutionary weapons of World War I, inciting both terror and fascination for militaries and civilians alike. During the war,

The U-boats constituted a serious threat to North American security and a major challenge to coastal and convoy defence. Hadley reveals the military and politic

The most comprehensive account of Germany's plans for an underwater offensive against the southern continent in World War II.