Foreign relations Politics and government 39 War on Terrorism, 2001- 23 Imperialism 17 Iraq War, 2003- 16 Military policy 13 Political aspects 13 September 11 Terrorist Attacks, 2001 13 World politics 13 Philosophy 12 Balance of power 11 Iraq War, 2003 11 Globalization 10 Terrorism 10 History 8 Security, International 8 Foreign public opinion 7 International relations 7 National security 7 Causes 6 Government policy 6 Influence 6 Intervention (International law) 6 Political culture 6 Social conditions 6 Democracy 4 Militarism 4 National characteristics, American 4 Afghan War, 2001- 3 Conservatism 3