21.2 War전쟁
21.2 War
21.2 WAR / 전쟁
21.2; 1.2 . . . . . . . . . . Just War / 정의의 전쟁
21.2; 7.1 . . . . . . . . . . Medical Groups Against War/ 의료집단의 전쟁반대
21.2; 16.2 . . . . . . . . . Nuclear War / 핵전쟁
21.2 . . . . . . . . . . . . . . War / 전쟁
21.2; 16.1 . . . . . . . . . Weather Warfare / 날씨를 이용한 전투