Peace -- 14 Foreign relations -- 7 Peace 7 World War -- 5 Diplomatic history -- 3 International relations 3 National security -- 3 more ... Peace movements -- 3 Conflict management 2 Congresses 2 History -- 2 Pacific settlement of international disputes 2 Politics and government -- 2 Security, International 2 Study and teaching 2 Yearbooks -- 2 Aparthied -- 1 Audio-visual aids -- 1 Bibliography 1 Bibliography -- 1 Case studies 1 Case studies -- 1 Catalogs 1 Chimurenga War -- 1 Christianity 1 Christianity and justice 1 Civilization 1 Communication and culture 1 Conflict 1 Congresses -- 1 less ...