Archaeology delivers the evidence, that man has been at war ever since. The readiness to combat may have developed from the struggle of the survival of the fittest. The human being has the need to be part of a community and is constantly searching for a leader. To gain power it needs some negative character traits, like the greed for power and increased aggression. The human being tends to pass on responsibility for instructed crimes onto superiors. According to this principle it was possible to establish an army anywhere and at any time. Art often illustrates combat and war scenes from the view of the winner, which seems to be a glorification of violence.
(K.B. - A.M. - R.M.)