>>17859344You're slightly wrong. The Japanese knew that the US would retaliate after Pearl Harbour. That's why the attack was also coordinated with capturing the Philippines and key US bases such as Guam and Wake.
The Japanese strategy to win the war was based on "Kantai Kessen", which is how they won against the far superior Russian empire a few decades earlier.
Kantai Kessen means to win the war by decisive battle. The Japanese would wait for the US offensive and then defeat thst fleet in a major decisive battle. It would be Pearl Harbour x2, where USA would have their navy temporarily knocked out twice. Midway was supposed to have been that battle.
The Japanese never fooled themselves that the US was an unstoppable industrial juggernaut that would win any war if they really slammed on it, but the rationale was that USA simply wouldn't go all in, that they would ultimately concede to Japanese ambitions in Asia because the price would be too heavy. The irony is that by attacking the US directly, it did give FDR a blank cheque to go all in on the war.
The Japanese never abandoned their belief in 'Kantai Kessen' even as the war was hopelessly lost. Even in mid-1945 they were holding out with the belief that a decisive battle would be so costly that it would force USA to make concessions.
Everything else you write is correct, the military was delusional in their own hubris of tactical superiority, and thr Japanese civil government inability to prevent the military from getting its way.
Meanwhile the emperor was busy studying butterflies than to involve himself in the appearing Armageddon.