Mekong First Light

“Before we got to Vietnam, the troops all thought you would be the first lieutenant killed, and in the end, you were the only one left. We were all wrong. You were the best.”
—Sgt. Lonnie “Tallman” Caldwell

December, 1966: Platoon leader Lt. Joseph Callaway had just turned twenty-three when he arrived in Vietnam to lead forty-two untested men into battle against some of the toughest, most experience...