For all its bravado, China is economically vulnerable. POTUS knows exactly what he is doing.
https://www.scmp.com/news/china/economy/article/2147922/china-needs-independent-bankruptcy-courts-kill-zombie-firms-legal
https://money.usnews.com/investing/news/articles/2018-05-18/china-steel-firm-kingtec-facing-bankruptcy-amid-debt-pressures
As China Suffers Its Biggest Bankruptcy Of 2018, The PBOC Finally Panics | Zerohedge
https://www.youtube.com/watch?v=cq96UDH26LY