Of course some “Invaders” leave behind the local population in control… Korea, Iraq, Afghanistan for starters ..
whereas others completely obliterate any remnants of the population to self determination. In the History of the entire world , there has never been a nicer Invader than the USA.. and as for Vietnam, if you lived in Fragrant harbor and saw the 20 years of boat people that had to flee that country you would understand that a bit clearer.