Hello, stupid Internet user. If you declare war on Japan, Japan will have nuclear weapons about 20 minutes after you declare war.
By the way, they already have some delivery systems.
Japanese engineers are very efficient. I suspect their airforce is just as efficient.
They have no air force.
Japan is by law nuclear-free. They are only permitted a small army and a tiny navy with little boats, (They ain't big enough to call ships), for "defense".
That was written into their Douglas MacArthur-written postwar constitution.
Hey, this is not just a communist state mouthing off against an ally, this is analogous to Jewish folks mouthing off a Germany, IF that Germany had not apologized. Do Note that Germany has, unlike Japan, apologized, over and over again