They didn’t invade Hong Kong, it was given back to China from the British after the 99 year lease expired. The violence in Hong Kong was to destroy the concept of democracy among the citizens there.

https://www.nytimes.com/2025/03/27/us/students-trump-ice-detention.html

https://www.npr.org/2025/02/06/nx-s1-5281179/trump-executive-order-aims-to-deport-international-students-who-have-protested-israel

https://foreignpolicy.com/2025/03/21/trump-deportation-columbia-university-palestinian-protest-mahmoud-khalil-badar-khan-suri/

I really hope you read these articles and round out your knowledge of what is actually happening.