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 mag...