JJ nailed it.
I don't remember where I read it but these cities are starting out huge. It's not going to e a case of a trading post turning into a settlement that turns into a village that turns into a town, then a city, then a metropolis. They will start as large cities/metropoli and as such once a million or so folks move in the Honduran military will be impotent.
First, the top guys will have money invested.
Second, family members of the troops are likely to be moving there.
Third, any violence will probably get the perpetrators and indictment in the World Court or even in the sovereign courts of whatever nationality of person is harmed or killed. Or maybe, if it is true that the London Court (or whatever it is called) is going to be in charge of jurisprudence means that a malefactor will have at least Britain coming after them in addition to whatever other angry countries there might be.
This is a very well connected world now. Where will the person that gives the order to launch rockets or bombs at innocent folks going to hide?