US Submarines 1900-35 cover

DUAL BOOK REVIEW: US Submarines 1900-35 and Defeating the U-Boat: Inventing Antisubmarine Warfare

US Submarines 1900-35 by Jim Christley, Osprey Publishing, 2011.         Defeating the U-Boat: Inventing Antisubmarine Warfare by Jan S. Breemer, Dept. of the Navy, 2010.     Reviewed by James-Joseph Ahern Introduced into naval service at the start of the Twentieth-Century, the submarine presented the first threat to the century old concept