Atomic bomb History 53 World War, 1939-1945 24 Moral and ethical aspects 16 Foreign relations 10 Physiological effect 9 Social aspects 9 more ... Military policy 8 Nuclear warfare 6 Civilization 4 Cold War 4 History and criticism 4 Physicists 4 Atomic bomb in literature 3 Atomic bomb victims 3 Nuclear weapons 3 Political aspects 3 Science and state 3 Blast effect 2 Books and reading 2 Chemists 2 Civil defense 2 Commando operations 2 Diplomatic history 2 Diseases 2 Exhibitions 2 Influence 2 Intellectual life 2 Japanese literature 2 Nuclear energy 2 less ...