By the Tet Offensive in early 1968, what had been widely heralded as the best qualified, best-trained army in US history was descending into crisis as the Vietnam War raged without end. Morale was tanking. AWOL rates were rising. And in August of that year, a group of Black soldiers seized control of the infamous Long Binh Jail, burned buildings, and beat a white inmate to death with a shovel. The days of "same mud, same blood" were over, and by the end of the decade, a new generation of Black GIs had decisively rejected the slights and institutional racism their forefathers had endured. ...