We can talk about this much, but I think it was inevitable. Why? Japan wanted the war and Americans just waited for the attack. If Japan has given up the attack on the Pacific and went to Asia, it would have war with Stalin. Then Americans would certainly help either Russia or Britain on the Atlantic. Also, the Japanese could not remain neutral because Hitler has caused them to attack someone. So I think there was a secret agreement between Japan and the Nazis that the Nazis will attack USSR and Japanese will attack US.
We can talk about this much, but I think it was inevitable. Why? Japan wanted the war and Americans just waited for the attack. If Japan has given up the attack on the Pacific and went to Asia, it would have war with Stalin. Then Americans would certainly help either Russia or Britain on the Atlantic. Also, the Japanese could not remain neutral because Hitler has caused them to attack someone. So I think there was a secret agreement between Japan and the Nazis that the Nazis will attack USSR and Japanese will attack US.