["HISTORY \/ Military \/ World War I","Civilization, Modern;20th century.","World War, 1914-1918;Influence and results.","World War, 1914-1918;Influence.","20TH CENTURY WORLD HISTORY","Civilization, Modern;20th century.","GENERAL","HISTORY \/ Military \/ World War I","Military","Non-Fiction","Scholarly\/Undergraduate","United States","World War, 1914-1918;Influence and results.","World War, 1914-1918;Influence."]