Peace Religious aspects 89 War 59 History 50 Foreign relations 45 Arab-Israeli conflict 38 Christianity 33 more ... Politics and government 28 World War, 1939-1945 25 World War, 1914-1918 22 International relations 18 Doctrines 16 Nonviolence 16 World politics 16 Peace-building 14 Pacifism 13 Study and teaching 13 Catholic Church 11 Conflict management 10 Security, International 10 Diplomatic history 9 Israel-Arab War, 1973 9 Moral and ethical aspects 9 Nuclear warfare 9 Violence 9 Biblical teaching 8 Causes 8 Just war doctrine 8 Peace movements 8 Social aspects 8 less ...