National security -- 13 Foreign relations -- 5 Military policy 2 North Atlantic Treaty Organization 2 Security, International 2 Air defenses -- 1 Anti-tactical ballistic missiles -- 1 more ... Armed Forces -- 1 Arms race -- 1 Congresses 1 Congresses -- 1 Ethnics relations -- 1 German reunification question (1949-1990) 1 History -- 1 Military relations -- 1 National security Europe, Eastern -- 1 National security Former Soviet republics Congresses 1 Operation Allied Force, 1999 1 Politics and government -- 1 Weapons of destruction -- 1 Weapons of mass destruction -- 1 World politics -- 1 less ...