By John J. Geoghegan

“John Geoghegan's 'Operation Storm' is a fascinating, meticulously researched and deft account of this bizarre chapter (in American history).” The Wall Street Journal

“An exciting narrative of a naval showdown revealing hubris and humility on both sides...Geoghegan has scoured the archives to present a little-touted facet of Japanese naval history that offers a fascinating glimpse into the workings of the Japanese mindset at the endgame of the war.” Kirkus 

“Aviation historian Geoghegan’s virtuoso research turns up surviving witnesses and obscure documents to corroborate this engrossing story of politics, logistics, and the technological leaps and bounds made during wartime, and the resulting tale is a thrilling take on a little-known aspect of the conflict in the Pacific theater.” Publishers Weekly

“A great historical read, scrupulously researched and brilliantly written. A marvelous insight into the men on both sides who fought a brutal underwater war in the Pacific in World War II.” –Clive Cussler, bestselling author of the Dirk Pitt and NUMA Series

“Anyone who believes there are no more hidden secrets to World War II will feel differently on seeing this book. I’ve been reading about the war all my life, but knew nothing of the extraordinary weapon whose story John Geoghegan tells here. And tells, I might add, in a riveting, vivid, suspenseful way that makes it hard to stop reading once you’ve begun…it's a remarkable tale.”Adam Hochschild, Pulitzer-Prize winning historian and bestselling author of King Leopold’s Ghost

“The Imperial Navy’s submarine force in WWII is still barely understood in the West. Geoghegan has given us one of the first detailed glimpses into the workings of Japan’s undersea fleet. His detailed coverage of the Imperial Navy’s I-400 program is uniquely interesting.”Jonathan Parshall, author of Shattered Sword

Operation Storm is a must read for anyone interested in the Pacific War…it masterfully tells the ‘story within the story’ of these phenomenal vessels focusing on the very human side of war. Geoghegan’s research answered questions I've had for years.Vice Admiral (ret.) Al Konetzni, Jr., Commander Submarine Forces, U.S. Pacific Fleet (2001-2004) 

Operation Storm does for Japanese submarines what Das Boot did for U-boats, showing the human side of a remarkable story no less extraordinary for being true. Geoghegan's splendid research combined with his writing skill makes Storm a genuine page turner.”Col. (ret.) Walter J. Boyne, former head of the Smithsonian Air & Space Museum

“Deeply impressive….I was really drawn in by the details of this story.”Rear Admiral (ret.) Yoichi Hirama, Lecturer at Japan's National Institute for Defense Studies formerly of the Japanese Maritime Self Defense Force

“Unknown to most Americans, in the closing months of the Pacific War Japan deployed huge underwater aircraft carriers from which to attack U.S. cities and the Panama Canal. The submarine technology is a story in itself here, told in vivid prose, with attention paid to the personalities of the principal players. Bravo!”Michael Gannon, best-selling author of Operation Drumbeat: The Dramatic True Story of Germany's First U-boat Attacks Along the American Coast in World War II

“Impressively documented and lucidly written, here is a lively, well-balanced account of the Imperial Japanese Navy's huge I-400 class submarines and their eleventh hour ‘game-changer’ mission.”—Carl Boyd, co-author of The Japanese Submarine Force and World War II; Professor Emeritus, Old Dominion University; and U.S. Navy submariner 1954-58

“Just when we were beginning to think that every conceivable World War II topic worthy of study has already had a shelf’s worth of books devoted to it…Geoghegan’s Operation Storm combines painstaking research and crisp writing to bring to life, for the first time in English, the fascinating story of Japan’s late war I-400 experimental submarine program.”M.G. Sheftall, author of Blossoms in the Wind: Human Legacies of the Kamikaze

“A magnificent page-turner that reveals the inside story of a remarkable top secret program, Operation Storm is a powerful, towering achievement.”David King, bestselling author of Death in the City of Light

“Operation Storm is an exciting page turner comparable to the best of Tom Clancy's techno-thrillers--except this tale happens to be true...Geoghegan has delved deeply into...(the) records to tell a fascinating story.” Aviation History magazine