Foreign relations -- 4 Politics and government -- 4 Communism -- 1 Congresses -- 1 Economic aspects 1 Economic conditions -- 1 Foreign economic relations -- 1 more ... German reunification question (1949-1990) -- 1 History -- 1 Influence 1 National security -- 1 Reconstruction (1914-1939) 1 Relations -- 1 Unification -- 1 World War, 1914-1918 -- 1 less ...