Alternately, those farms and forges might just make you a very juicy target for more mobile, perhaps shepherding outsiders. This seems to be a rather common pa

Alternately, those farms and forges might just make you a very juicy target for more mobile, perhaps shepherding outsiders. This seems to be a rather common pattern in history, one that can even be traced to pre-PIE times - it seems that the PIE culture itself was the result of early agriculturalists in the Pontic steppes being invaded by ousiders from farther up north in Eurasia - known only from molecular-level evidence, and labeled the "ancient north Eurasians". This is arguably the grain of truth in the "conflict as a result of settled communities/states" story - it's not necessarily the 'states' that engage in all the violence, they need only provide a motive for it!