Moral and ethical aspects History 15 World War, 1939-1945 13 Atomic bomb 8 Military policy 7 Foreign relations 5 Atomic bomb victims 4 more ... Collective memory 3 Historiography 3 Memorials 3 Nuclear warfare 3 Political aspects 3 Responsibility 3 Atrocities 2 Diplomatic relations 2 Exhibitions 2 Influence 2 Jiu-jitsu 2 Judo 2 Martial artists 2 Peace movements 2 Physical education and training 2 Public history 2 Religious life 2 Religious life and customs 2 Social aspects 2 Aerial operations, American 1 Aerial operations, British 1 Anti-Americanism 1 Antitrust law 1 less ...