Through the banks which are increasingly influenced by China?
Unilaterally, just have the US say "I'm not paying you, China?" Do that and they'll destroy their credit rating. How much more interest do you think the US would have to pay on a 20 trillion dollar debt?
Sounds good in theory. How do you enforce it?
Through the UN, where China has veto power?
Through the banks which are increasingly influenced by China?
Unilaterally, just have the US say "I'm not paying you, China?" Do that and they'll destroy their credit rating. How much more interest do you think the US would have to pay on a 20 trillion dollar debt?
Nukes