The US should begin discussions on arming the Chetchnians (Russia's mortal enemy) and South Korea and Japan (China's mortal enemy) with nuclear technology.
See how Russia and China like the idea of having THEIR enemies armed with nukes.
Excellent point. While we are at it let's give our allies nukes. I'm sure countries like Poland, Thailand and Australia could use a few. Somehow I don't think China will try to invade Thailand if they had the bomb and the means to launch them. And Rusiia will not sleep too soundly if Poland had them, even if they are not enemies.
The PRC has been distrustful of Japan since the end of World War II, although relations have improved since then. I'm slightly confused with your wording. Do you think China considers South Korea to be a mortal enemy or just Japan?