Taiwan's independence. The emergence of TSMC is pretty critical at this point in time and the US and other European countries have paid them a lot of money to open plants in their territories.
China now has to either pretend is has way more nuclear missiles or actually make them (and maintain them).
The US and China are in this constant state of "our biggest trade partner is also our current biggest rival". I'm not really sure what the end game of that entails but I'm really hoping it just maintains at dick waving status.
It's going to be very interesting if/how China steps into Afghanistan. That was basically Russia's vietnam. The current US situation with it should be pretty obvious to everyone at this point.
We specifically did pacific theatre exercises with the japanese self defense force and the south korean military with shit like launching land based JSDF missles from USN ships target guidance and plenty of other joint operations to show China(maybe Russia?) the capabilities of the US armed forces and it's allies.
inb4 "the usa started it". Yeah probably. China has been playing the military dick measuring game for the last 10 years pretty hard tho. I didn't think any country was as stupid as the USA to put as much money into defense spending but here we are (I am a US citizen).
tl;dr China is openly hostile to US military and economic influence in SE Asia.
What interests of ours is China openly hostile to?