History, Modern -- History -- 3 20th century 2 Chronology -- 2 20th century -- 1 Biography -- 1 Civilization -- 1 more ... Colonies -- 1 Crimes against humanity 1 Dictionaries 1 Encyclopedias 1 Encyclopedias -- 1 Ethnic relations -- 1 Foreign correspondents -- 1 Genocide 1 Globalization -- 1 Handbooks, manuals, etc. -- 1 International relations 1 Peace 1 Pictorial works -- 1 Political aspects 1 Security, International 1 Sources -- 1 Speeches, addresses, etc 1 Twentieth century 1 War crimes 1 less ...