"Draws on a rich trove of both little-known and newly uncovered letters and diaries to create a marvelously vivid and moving account of the American experience in World War I, with General John Pershing featured prominently in the foreground. Andrew Carroll's intimate portrait of General Pershing, who led all of the American troops in Europe during World War I, is a revelation. Given a military force that, on the eve of its entry into the war, was...