he World s Most Powerful Submarines features 52 of the most significant submarines built, from the German U-9 through the USS Ray and huge Japanese I-400 class of World War II, to the great nuclear-powered submarines of the Cold War. Also included are the latest attack and ballistic missile submarines. Each entry includes a brief description of the submarine s development and history, a color profile view or cutaway, key features, and specifications. Packed with more than 200 artworks and photographs.