History -- 3 Politics and government -- 3 Foreign relations -- 2 Relations -- 2 Biography -- 1 Communism -- 1 Congresses -- 1 more ... Economic aspects 1 Economic conditions -- 1 Foreign economic relations -- 1 German reunification question (1949-1990) 1 German reunification question (1949-1990) -- 1 Heads of state -- 1 National security -- 1 Unification -- 1 less ...