Using photos, maps, charts and extensive travel throughout Vietnam, Tregaskis covered every major port, airfield, bridge, building, hospital, & storage facility engineered & constructed in Vietnam by the United States Navy SEABEES and other military engineers and American civilian engineers (1962-1972). He weaves this story, of one of the largest war-time construction efforts in history, through the backdrop of the major battles of the war and its political intrigues.