1. The precipitating factor in 99 per cent of these cases cannot be said to be due to any excessive stress or strain as found in actual combat.2. No one outstanding or abnormal factor is found in family or personal histories.3. It is believed that in some cases, perhaps in the psychoneurotic group primarily, the sudden change of environment together with an inadequate personality to begin with, may have contributed as a precipitating factor in the patient's mental breakdown.4. Venereal disease in this study did not play an important rôle.5. It is my opinion that a great number of cases found in this study could have been rejected prior to induction had proper notation been made as to educational advantages. Those found to have less than an eighth grade education could have been segregated by draft boards, proper psychometric examinations could have been given and social service histories obtained.