Link?
https://www.foxbusiness.com/markets/historic-chinese-bonds-trump-leverage-beijing
https://southfront.org/trump-seeks-to-use-chinese-imperial-debt-bonds-to-pressure-beijing-in-trade-war-bloomberg/
https://www.asiafinancial.com/us-calls-for-payment-on-qing-dynasty-bonds-worth-1-6-trillion