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Imperial Japanese Navy was created in 1869.

Imperial Japanese Navy ended in 1947.

On land, overwhelming firepower. At sea, overwhelming firepower. During the land battles, that tactic worked well, there was NO place for the Japanese to retreat to, on an island. At sea however, the Japanese had the overwhelming firepower and skill to use it. Only after the US out numbered the Japanese Navy in Aircraft Carriers, Airplanes, Battleships, Cruisers, Destroyers, and Submarines, did the US Navy overwhelm the Imperial Navy with firepower.

Submarines and Aircraft Carriers