In June of 1918, a fierce battle was waged at Belleau Wood, an ancient hunting-reserve of old-growth oaks, surrounded by wheat fields, located about 60 miles outside of Paris. The Germans were launching their spring offensive to overwhelm the Allies before they were fortified by fresh American troops. The Americans were arriving at a rate of about 250,000 per month. The Battle of Belleau Wood has since achieved near-mythic status in U.S. military history, particularly for the U.S. Marines....