History History -- 32 Foreign relations -- 28 Biography -- 9 Politics and government 9 Biography 6 Race relations 6 more ... Emigration and immigration -- 5 Islam and state 5 Political aspects -- 5 Foreign relations 4 Juvenile literature 4 National security -- 4 World War, 1939-1945 -- 4 Aerial operations, American 3 Civil rights -- 3 Economic conditions 3 Heads of state -- 3 History, Military 3 Nationalism -- 3 Politics and government -- 3 Presidents -- 3 Afro-Americans -- 2 Armed Forces -- 2 Arms control -- 2 Asian Americans -- 2 Baltic States -- 2 Chinese Americans -- 2 Civilization 2 Commando troops 2 less ...