In 2018, Mayer Katz read Mark Bowden’s book “Hué 1968: A Turning Point of the American War in Vietnam.” It was the 50th anniversary of the Tet Offensive, the all-out assault by North Vietnam to invade the South, and the brutal battle by U.S. Marines to take back the historic city.At the end of the book, Katz, who had been a U.S. Army surgeon with a Mobile Army Surgical Hospital unit near Hué, encountered an iconic photo that came to symbolize the futility and brutality of the Vietnam War in 1968.The image, which showed bleeding Marines on top of a tank serving as a makeshift ambulance during the fighting in Hué, caused many Americans to question the wisdom of continuing the conflict.It was spurred by the Tet Offensive, which began on Jan. 31, 1968, when tens of thousands of North Vietnamese Army regulars and Viet Cong guerrillas poured over the border in an attempt to take control of South Vietnam.Katz said we were hard to kill.” Grantham was not aware of the photo until his brother-in-law spotted it in Life and showed it to him as he was recovering."