The problem now adays is that people just don’t have the stomach for war like they used to.
The rule used to be, pre-1800, that either a city under attack surrendered and chose to raise the flag of the aggressor, thereby not being seiged, raped, and pilliaged.
Or,
The city resisted, and you seiged it, raped, pilliaged, occupied, and raised your flag thier.
Lastly, whilst most empires expanded the rule aslo was if you wanted the land for yourself, you came in, killed everyone who had a claim to the territory, and took it as your own.
In modern terms however, we invade countires, briefly change their governments, piss everyone off who lives there, pay to rebuild their infrastructure, and then given the country back to the people we’ve made angry - after we’ve trained them to defend themselves.