A U.S. Marine Corps veteran-turned-merchant mariner recounts how in 1967 he accepted a neighborhood challenge to sneak into Vietnam, track down local friends on the front line and share beer over messages of love from home.

Soon to be a major motion picture written and directed by Peter Farrelly, who won two Academy Awards for Green Book - a wildly entertaining, feel-good memoir of an Irish American New Yorker and former US marine who embarked on a courageous, harebrained scheme to deliver beer to his pals serving Vietnam in the late 1960s. One night in 1967, 26-year-old John Donohue - known as Chick - was out with friends, drinking in a New York City bar. The friends...