BTW, the Japanese built several gigantic submarines that could launch bombers carrying nuclear warheads.
They really didn't need to secure a beachhead in the US.
For a one-shot bomber strike jumping off from the Aleutian Islands, they don't need a beachhead.
They just need one agent with a truckload of fuel who can show up at some little-used road in Canada that the planes can land, refuel, and take off from
Some years ago there were people who discounted that the Russian Backfire bomber could not be used for attacks on the US because it didn't have enough round-trip range. I kept answering that they didn't need round-trip range. It wasn't like there was any likelyhood of them getting back out and doing another mission. All they needed to do was drop their nukes, fly to some deserted spot, eject, put on civilian clothes, and hang loose for a while to wait for developments
Not hardly. Your info on their subs is incorrect.The special fleet sub you are talking about could only carry the single engine nakijima float plane and would not have been able to get airborne with the nuc device.Remember the B-29 was required to carry our nuc device we dropped on japan.