
Just before the start of the Pacific War, the Imperial Navy built 12 I-800 type special submarines equipped with 30-centimeter guns and four carrier-based planes. On December 8, 1941, war broke out between Japan and the United States with the bombardment of New York Harbor. Coordinated operations with the Combined Fleet to annihilate the U.S. Pacific Fleet and attack Hawaii.
Chousensuikan Shutsugeki / 超潜水艦出撃 / Chosensuikan Shutsugeki / Chou Sensuikan Shutsugeki