Schönberger describes states of depersonalization during wartime. He considers them the effect of immense quantities of hatred and destruction which bring about the loss of the 'peace ego'. In the process of adaptation to traumatic circumstances a new 'war ego' comes into existence. Clinical material is given which shows the difference between the old peace ego and the new one after the establishment of a new equilibrium. The theoretical considerations which follow Federn, Schilder and Searl are simply and brilliantly delineated.