Nuclear warfare 27 Nuclear weapons 5 Nuclear Warfare 4 Nuclear disarmament 3 United States 3 Arms control 2 Deterrence (Strategy) 2 Developing countries 2 Military policy 2 Nuclear crisis control 2 Nuclear energy 2 Nuclear terrorism 2 Peace 2 Radiation 2 Radiation Injuries 2 Radiation injuries 2 Safety measures 2 Strategy 2 Antinuclear movement 1 Arms race 1 Atomic bomb--Physiological effect 1 Biological weapons 1 Chimical weapons 1 Congress 1 Deterrence 1 Dissertations, Academic (Ph.D) 1 Dissertations,Academic (Ph.D) 1 Economics 1 Ethical aspects 1 Foreign relations 1