Thanks for that link, Martin. I was still on active duty then, and was in and out of Sarajevo and other parts of Bosnia from 1994 until 2000. I have talked to many survivors of the siege, knew many well. A little known fact is that the population of Sarajevo was very mixed, with Muslims, Croats and Serbs; all under siege together. The Serbs and Croats who chose to remain fought alongside and Muslims, and they all worked together and suffered together. They also were buried together, no longer separately as it had been done before. By the end of the siege, almost every piece of open ground became a cemetery. It is heart wrenching to see, especially the massive one on the South side of the city, on a hillside which was protected, for the most part, from Serb guns. It is HUGE.

Another event in history where you can learn a lot about urban survival, under horrible conditions, is in the 1944 Warsaw uprising. Unfortunately, they do not have an online presentation, but the Uprising Museum in Warsaw, Poland, is a must see if you go there. The book "Rising '44" by Norman Davies is a very thorough and detailed account, and provides many useful ideas for urban survival. Hopefully, a situation like that never happens again.