Imperial Japanese Navy Antisubmarine Escorts 1941-45

In 1941, the Imperial Japanese Navy (IJN) went to war with a marginal anti-submarine warfare (ASW) capability. This was a lamentable state of affairs for a nation dependent upon imports to sustain its war economy.

There were only a few purpose-built ASW escorts available at the start of the war and these were augmented by a handful of second-class destroyers and a dozen torpedo boats. Once the magnitude of the threat to Japan's shipping became fully apparent in 1943, the IJN made plans for mass production of ASW escorts. These arrived in 1944, but could not stop the massacre of Japanese shipping by increasingly bold and effective American submarines.

This volume will detail the history, weapons and tactics of the IJN's ASW escorts. These include the Momi class of second-rate destroyers, the Tomodzuru and Ootori classes of torpedo boars, and the several types of ASW escorts built from 1937 up through the end of the war.

About the Author

Mark E. Stille (Commander, United States Navy, retired) received his BA in History from the University of Maryland and also holds an MA from the Naval War College. He has worked in the intelligence community for 35 years including tours on the faculty of the Naval War College, on the Joint Staff and on US Navy ships.

He is currently a senior analyst working in the Washington DC area. He is the author of numerous Osprey titles, focusing on naval history in the Pacific. Paul Wright has painted ships of all kinds for most of his career, specializing in steel and steam warships from the late 19th century to the present day. Paul's art has illustrated the works of Patrick O'Brian, Dudley Pope and C.S. Forester amongst others, and hangs in many corporate and private collections all over the world. A Member of the Royal Society of Marine Artists, Paul lives and works in Surrey.