Victor "Brute" Krulak is arguably the most important officer in the history of the U.S. Marine Corps. In China, he went on daring spy missions. In World War II, he was instrumental in developing amphibious vehicles, and masterminded the invasion of Okinawa. In Korea, he was a combat hero and pioneered the use of helicopters in warfare. In Vietnam, he devised a holistic strategy to fighting the Viet Cong, but when he stood up to LBJ, Krulak was forced to retire. Yet perhaps all of his accomplishments pale in comparison to what he did after World War II and again after Korea: Krulak almost single-handedly stopped the U.S. government from abolishing the Marine Corps. And all the while, he kept secret the truth that he feared would destroy him.