You seem to ignore that the US has had, and kept, several overseas territories. There are current movements to recoup the independence of several of such territories, like Hawaii.
> So we train our military according to our values which renders them incapable of being able to maintain an occupation the way Chinese army or Russian army would be able to do.
The US military has been involved in all sorts of atrocities since the end of WWII, they just sometimes failed at achieving their military goals, e.g. Vietnam, and sometimes the government resorted to the use of other aggression tools, e.g. Cuba economic blockade.
> So we train our military according to our values which renders them incapable of being able to maintain an occupation the way Chinese army or Russian army would be able to do.
The US military has been involved in all sorts of atrocities since the end of WWII, they just sometimes failed at achieving their military goals, e.g. Vietnam, and sometimes the government resorted to the use of other aggression tools, e.g. Cuba economic blockade.