Here is a comprehensive accounting of all United States and allied submarine attacks on the Japanese for which success was claimed or occurred. The expanded coverage focuses on successes by U.S. and British and Dutch submarines in the Pacific and Indian oceans, Soviet submarines, and losses caused by mines laid by submarines. The book also includes details from top-secret "Ultra" messages decoded during the war and recently translated documents that provide correct Japanese ship names, ship type and tonnage, convoy names, human loss numbers and other attack details, as well as a military evaluation of each attack.