History 77 National security 74 Military policy 69 Foreign relations 52 Armed Forces 48 Nuclear weapons 37 Military relations 24 more ... Defenses 22 Fortification 21 History, Military 19 Diplomatic relations 17 Politics and government 17 Military art and science 14 World politics 14 Antiquities 13 Nuclear arms control 10 Security, International 10 Korean reunification question (1945- ) 9 Historic sites 8 Strategic aspects 8 International relations 7 Military readiness 7 Government policy 6 Strategic aspects of individual places 6 City walls 5 Korean War, 1950-1953 5 Nuclear nonproliferation 5 Weapons 5 Arms race 4 Excavations (Archaeology) 4 less ...