This climate change shifted the cost-benefit ratio of endemic violence between communities, which saw the abandonment of unwalled village communities and the appearance of walled cities, associated with the first civilizations.
Aəhanzi wan azaman ašəkaš mertay iji-bunafis ən taləbast ən torhəna jar kalan,inhayan atwəy ən kalan naroj wer ila iɣalan ad azojor ən iɣərman assohatnen, artaynen ad timusnawen ti azarnen.