First off the country has failed. There is no structure, no democracy, nothing but collections of people.

If "head hackers" leave the area how is indiscriminate killing going to help? Aside from showing that you are far more intolerant of life than the head hackers - there is no plan to export these people - they either decide to leave or are helped by specific groups of people.

Democracies have to take responsibility for all their people? Utter tripe - unless you are advocating almost complete destruction of civil liberties. People break laws all the time in their own country. These are not usually failings of the state, but the individual - buying a knife is not illegal, but stabbing someone is.

I agree that in the case of a power vacuum at the borders it would be best if the surrouding countries absorbed those parts that were amenable to being absorbed, thus reducing the lawless area.