Congresses Congresses -- 5 Foreign relations -- 4 Congresses. -- 2 Defenses -- 2 Economic policy -- 2 Perestroika -- 2 more ... Social conditions -- 2 Arms control -- 1 Commercial policy -- 1 Communist Strategy -- 1 Elite (Social Sciences) -- 1 Ethnic Relations -- 1 Foreign economic relations -- 1 Holocaust, Jewish (1939-1945) -- 1 International economic relations -- 1 Jews -- 1 Nuclear arms control -- 1 Persecutions -- 1 Politics and government -- 1 Soviet Union -- 1 less ...