2nd Amendment

[Slick Rick]

You cannot invade the mainland United States. There would be a rifle behind every blade of grass. - Isoroku Yamamoto, Fleet Admiral and Commander-in-Chief of the Imperial Japanese Navy (IJN) during World War II

Yeah, so Pearl Harbor, the uneasy alliance with the Axis, that was just for fun. As soon as Japan had sorted it's shit out, it would stop bothering the US. Besides the gun-laws did jack-shit to prevent the Japanese from entering American soil.

Do you know what "mainland" means?

Are you denying, that if Japan had total control of the Pacific, it would not dare to enter the smallest part of mainland America?
Are you saying that the Japanese's all-powerful plan to ally with the biggest forces of the world, was to capture some islands in the Pacific Ocean, start a war with one of the super-powers of the time, and just be "aye, it's cool" once they got the Pacific?

Other than that, my point still stands. The gun-laws did absolutely nothing.

"Smallest part of the mainland"? Hawaii (where Pearl Harbor was) and Alaska are not mainland.

The Japanese would have never invaded the mainland of the USA. And yes, they did do something, considering they never invaded.