In the Warlords game I was playing last night I was able to observe a lot of barbarians roaming around in a vast area of ice and tundra that contained several barbarian cities. At one point, I watched a barbarian Axeman attack and kill a barbarian Archer. Have barbarians always been attacking each other, and I just never noticed before? Or is this something new for Warlords? Is there any way to tell which barbarians are hostile to each other?