Defenses National security -- Military policy 2 Civil defense -- 1 Emergency management -- 1 Foreign relations -- 1 Government policy -- 1 more ... Great powers 1 Intervention (Internation al law) 1 Iraq War, 2003-2011 -- 1 Nationalism -- 1 Prevention -- 1 Public opinion 1 Public opinion -- 1 Terrorism -- 1 World politics -- 1 less ...