2 0 0 9 ). ▁ ▁E vol ved ▁responses ▁to ▁inter group ▁conflict ▁▁ ▁War ▁and ▁inter group ▁conflict ▁is ▁a ▁strong ▁evolution ary ▁factor . ▁The ▁so - called ▁reg ality ▁theory ▁describes ▁how ▁human ▁psych ological ▁tra its ▁are ▁respond ing ▁to ▁either ▁a ▁host ile ▁or ▁a ▁peace ful ▁environment . ▁Hum ans ▁show ▁author itar ian ▁re actions ▁and ▁prefer ences ▁for ▁a ▁strong ▁leader ▁in ▁case ▁of ▁war ▁or ▁perce ived ▁collect ive ▁danger . ▁The ▁evolution ary ▁function ▁of ▁this ▁so - called ▁reg al ▁reaction ▁is ▁that ▁it ▁allows ▁a ▁strong ▁leader ▁to ▁solve ▁the ▁collect ive ▁action ▁problem ▁in ▁war ▁and ▁suppress ▁free ▁r iding . ▁The ▁whole ▁society ▁and ▁culture ▁is ▁sh aped ▁by ▁the ▁reg al ▁psych ological ▁re actions ▁of ▁its ▁members . ▁A ▁reg al ▁society ▁is ▁character ized ▁by ▁an ▁author itar ian ▁and ▁hier arch ical ▁organization , ▁strict ▁discipline , ▁int ol er ance , ▁and ▁x en oph ob ia . ▁ ▁The ▁opposite ▁of ▁the ▁reg al ▁reaction ▁is ▁called ▁k ung ic . ▁The ▁k ung ic ▁reaction ▁is ▁seen ▁when ▁a ▁group ▁of ▁people ▁are ▁living ▁in ▁peace ▁and ▁security . ▁People ▁will ▁not ▁toler ate ▁a ▁ty ran n ical ▁leader ▁who ▁can ▁explo it ▁all ▁resources ▁to ▁en rich ▁himself . ▁Instead , ▁people ▁will ▁prefer ▁an ▁eg al itar ian ▁and ▁toler ant ▁society ▁when ▁they ▁live ▁in ▁an ▁environment ▁of ▁collect ive ▁safety . ▁ ▁See ▁also ▁E volution