Each year, the Commandant of the U.S. Marine Corps selects one book that he believes is both relevant and timeless for reading by all Marines. The Commandant's choice for 1993 was We Were Soldiers Once . . . and Young . In November 1965, some 450 men of the 1st Battalion, 7th Cavalry, under the command of Lt. Col. Hal Moore, were dropped by helicopter into a small clearing in the Ia Drang Valley. They were immediately surrounded by 2,000 North Vietnamese...