In Yugoslavia there is a defence war act by which every hospital has to have prospect about defence of whole population in case of attack from abroad. First step of every prospect is the evaluation of casualties. Evaluation of casualties in possible war and neurosurgical discipline should be made from following aspects: estimation of amount of neurosurgical injuries, number of neurosurgical patients before the war, disposal of hospitals and beds for neurosurgery, equipment, and number of neurosurgeons. Management of neurosurgical injuries in the war begins with the first aid. After that casualties should be divided into several groups. Certain amount of patients with minor injuries of the head could be managed by general practitioner or general surgeon. The first group of really neurosurgical cases is consisted of injuries which must be operated upon by neurosurgeon immediately, without any delay. The second group are made of patients who need neurosurgical help, but it can be delayed several hours or so. The third group is consisted from injuries which should not be treated operatively. And the last one is a group of cases who will die with or without neurosurgical help. The treatment in these cases should be paliative without neurosurgical staff and equipment involved.