Government policy -- Terrorism -- 5 Foreign relations -- 3 Nuclear non-proliferation 2 Nuclear weapons -- 2 Prevention -- 2 War on terrorism, 2001- 2 more ... Case studies 1 Civil defense -- 1 Defenses 1 Economic sanctions, American 1 Emergency management -- 1 Foreign relations 1 Free zones -- 1 Jihad 1 National security 1 National security -- 1 Nuclear arms control -- 1 Petroleum industry and trade -- 1 Plutonium -- 1 Politics and government 1 Politics and government -- 1 Relations 1 less ...