The carnage of 20th - century wars has left humanity with a sense of dread and loathing over what war does. One source reasoned that this antipathy toward violence has led to the abolishment of capital punishment in many countries and has fostered a sympathy toward those who refuse to take part in military activities.
ए हिस्ट्री ऑफ वारफैर किताब कहती है: “दुनिया के किसी भी कोने में आज किसी ऐसे व्यक्‍ति या समूह को ढूँढ़ निकालना बहुत मुश्‍किल है जो इस निष्कर्ष से सहमत होगा कि युद्ध करना वाजिब है । ”