Terrorism -- Foreign relations -- 5 War on Terrorism, 2001-2009 4 Politics and government -- 3 Government policy -- 2 History -- 2 Causes 1 more ... Civil defense 1 Civil defense -- 1 Civil rights -- 1 Cold War 1 Combatants and noncombatants (International Law) 1 Defenses 1 Detention of persons -- 1 Drug traffic -- 1 Executive power -- 1 Harbors -- 1 Islam 1 Islam and politics -- 1 Islamic fundamentalism 1 Legal status, laws, etc -- 1 Merchant marine -- 1 National security 1 National security -- 1 Political aspects -- 1 Prevention 1 Prevention -- 1 Prevention. -- 1 Religious aspects -- 1 Security measures 1 less ...