That would get their attention, LOL.
As a result of a treaty that we were a party to in the early 1900's. They hated us for it, which lead to WWII.
The history books have been re-written re dumbdown, but the ones I read when I was going to HS and College said exactly that.
Down deep the Japs still hate us, so we need to watch what we give them.
Instead, let them arm themselves with conventional weapons, and let them pay us for them, so they can fight the North Koreans when the time comes.