The "Second Happy Time" was the informal name given to the phase of the battle of the Atlantic when German U-boats attacked both merchant and U.S. naval vessels

A deeply researched and engaging account of the use of U-Boats in the First World War. The focus touches on both diplomatic and economic aspects as well as the

“An absorbing work for those interested in both the Great War and early submarine-based strategic theory.” —Naval History This deeply researched and engag

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,