How Vietnam Was Lost

Based on David Maraniss' book, They Marched into Sunlight, the film tells the story of two seemingly unconnected events in October 1967 that changed the course of the Vietnam War. Based on David Maraniss' book, They Marched into Sunlight, the film tells the story of two seemingly unconnected events in October 1967 that changed the course of the Vietnam War. Based on David Maraniss' book, They Marched into Sunlight, the film tells the story of two seemingly unconnected events in October 1967 that changed the course of the Vietnam War. Based on David Maraniss' book, They Marched into Sunlight, the film tells the story of two seemingly unconnected events in October 1967 that changed the course of the Vietnam War.