World politics Foreign relations 128 International relations 118 Military policy 63 History 55 National security 38 Security, International 36 War 32 Politics and government 29 Cold War 28 Terrorism 25 United States 24 Forecasting 22 Armed Forces 16 Strategy 16 Military art and science 15 International economic relations 14 Defenses 13 Geopolitics 13 Military history, Modern 13 September 11 Terrorist Attacks, 2001 12 War on terrorism, 2001- 12 21st century 11 Balance of power 11 Globalization 11 Nuclear weapons 11 Political aspects 11 Congresses 9 Economic history 9 Influence 9