Peck. After nearly three years on the sidelines, America entered the Great War in 1917 and helped the Allies finish off Germany by late 1918 - emerging as a global superpower in the process. This fascinating timeline follows along as the U.S. fights in Europe and then quickly withdraws from the world stage, only to see communism spread globally and racial and gender unrest explode at home. 448 pages, 5½"x 8¼", B&W photos, softcover.