Japanese submarines combats in the Second World War

In World War II, although the United States had an unusually long supply line, leaving it vulnerable to submarine attack, Japan used its submarines primarily for long-range reconnaissance and only occasionally attacked their lines. The Imperial Japanese Navy followed the doctrine of “Guerre d'Escadre” (fleet vs. fleet warfare) and consequently submarines were often used in offensive roles against warships. In this book, I will focus more on the tactical and technical decision-making levels, basing the tasks on examples taken from situations experienced by Japanese submarine crews during World War II. However, I will insert their missions into a broader framework of submarine warfare involving the strategic, operational, strategic and political decision-making levels, in order to meet the greatest opportunity that Japan had during the conflict, which was an amphibious invasion of Hawaii, the initial objective of Operation AI, later changed to an air-naval attack (aircraft and midget submarines) on the Pearl Harbor naval base. And in the development of this simulation, I will use the U-Boot board game from Galápagos Jogos.