National security POLITICAL SCIENCE 809 HISTORY 606 Foreign relations 575 General 565 Diplomatic relations 510 TECHNOLOGY & ENGINEERING 481 Military 480 Military Science 463 Other 417 Relations extérieures 413 Military policy 399 Politics and government 356 International Relations 339 Terrorism 321 History 314 Prevention 285 Security, International 280 International 264 Government 245 Politique et gouvernement 232 Government policy 208 Terrorisme 195 Histoire 187 Security (National & International) 176 Politique gouvernementale 166 Political Freedom & Security 165 SOCIAL SCIENCE 152 Law and legislation 143 International relations 139