Derrick Jensen, Endgame vol. 2: Resistance page 766

Civilization has from the beginning devoted itself almost completely to conquest, to war. It's sometimes hard to say--and I'm not sure I care anyway--whether the civilized hyperexploit resources to fuel the war machine, or need a war machine to seize resources (which are then hyperexploited to fuel the war machine). It's probably a bit like asking whether the dominant culture is so destructive becasue most of its members are insane, suffering from a form of complex PTSD; or whether the dominant culture is so destructive because its materialistic system of social rewards--overvaluing the acquisition of wealth and power and undervaluing relationship--leads inevitably to hatred and atrocity; or whether the physical resource requirements of cities necessitate widespread violence and destruction. The answer is yes.