Foreign relations -- 15 History -- 8 Politics and government -- 7 World politics -- 4 Politics and government 3 Congresses -- 2 Federal government -- 2 more ... Military policy 2 National security -- 2 National socialism -- 2 Psychological aspect 2 Relations -- 2 Security, International 2 Trade-unions -- 2 Unification, 1990 2 Aircraft industry -- 1 Antinuclear movement -- 1 Armed forces -- 1 Attitudes -- 1 Banks and banking -- 1 Biography -- 1 Civilization 1 Cold War 1 Collective bargaining -- 1 Communism -- 1 Competition, International 1 Constitutional 1 Corporate reorganizations -- 1 Defense industries -- 1 Defense information, Classified -- 1 less ...