I'd get 'proactive' and tie unsuspecting Chinese Australians/international full fee paying students to trees, tape their mouths then attach hand grenades to their wrists, so when in a heartbeat their own rush to rescue them, they would blow-up around our trees and take a few of their invading friends with them.
I then organise my own militant tree-top and cave-dwelling army, and have them build ditches, traps, tree-house type look-outs all sorts of discrete accommodation in caves , dig-outs and we take care of our own and each other until these monkeys either out number us or an allied force arrives to lend us a hand, which they would.
I'd rather go out fighting, than succumb to a beastly vermin regime, besides, there would be no negotiating with them anyway, particularly if female or child, as they'd only use the men for slaves, hard-labour and rape and kill the rest anyway so what would be the point of trying to do business with them?
They aren't Americans, so probably wouldn't care too much for free enterprise agreements with respects to brothels and so forth...