when you can’t pay back a loan, the bank can take your house, if america don’t pay back China, what’ll they do?

Amadeus C asked: I understand that it is in the best interest of both nations to keep the relationship going, and that the treasury bonds which China buys are paid when they mature…
but what I can’t figure out is that does China have any collateral over the US, in case that tensions escalate and we [...]