> If China drops some of their own thermonuclear weapons on Tokyo, what's Japan's response? Dropping a fission weapon? I don't think it works that way. Fissio

> If China drops some of their own thermonuclear weapons on Tokyo, what's Japan's response? Dropping a fission weapon? I don't think it works that way. Fission bombs are perfectly capable of leveling a city. If a city gets leveled, no one's going to shrug it off because it was done with the "wrong" kind of weapon. IIRC, modern thermonuclear warheads have yields along the lines of a couple hundred kilotons. Even through theoretically they can be made much more powerful, in practice they aren't.