The US military doesn't sell weaponry to HK nor does it have a defence treaty like they do with Taiwan https://en.m.wikipedia.org/wiki/Sino-American_Mutual_Defe

The US military doesn't sell weaponry to HK nor does it have a defence treaty like they do with Taiwan https://en.m.wikipedia.org/wiki/Sino-American_Mutual_Defense_Treaty https://en.m.wikipedia.org/wiki/Sino-American_Mutual_Defense... imposing control on Hong Kong happened because it did not require high-stakes combat with a nuclear peer competitor