You wrote:

> if you study the Kosovo War outbreak there were situations where regions were cut off from supplies, power was lost, but yet there was no invasion or shelling. Ireland comes to mind, there are some examples..

In case I was wrong, and missing something well-known, I reviewed the Kosovo War summary at https://en.wikipedia.org/wiki/Kosovo_War and The Troubles at https://en.wikipedia.org/wiki/The_Troubles . I cannot find a relevant example.

For Kosovo, the closest I could find was the Izbica massacre, where FRY and Republic of Serbia forces stole from several thousand villagers then killed 130 Kosovo Albanian men, and the Battle of Junik, where Junik was under siege for 20 days. However, both actions were carried out by partisans, and don't show sign of a third party filling a power gap.

There were 10 or so shell fired in Newry, and unpredictable power during the Ulster Workers' Council strike of 15 to 28 May 1974. Otherwise I found nothing like a city or village being cut off for weeks with no supplies or power in Ireland, and being shelled.

Certainly there are historic instances of cities being cut off, like the Siege of Leningrad or the Warsaw Ghetto during WWII, and the Siege of Sarajevo during the Bosnian war. The German tally after the Warsaw Ghetto Uprising suggests that there were fewer than 100 firearms in the ghetto, and nowhere near one per family, so that's not more a counter-example to your point. In any case, third party "drug gangs" or the equivalent power grab do no appear to play any significant role.

So I ask again, can you point to any post-war European examples?