LBJ's trips to Vietnam in 1966 and 1967; LBJ's mood about Vietnam; LBJ's relationship with the military; LBJ and LeMay, McConnell, Wheeler, Moymer, Abrams, Westmoreland and Haig; aspects of the role of a military aide; LBJ and Humphrey; LBJ and Califano; Cross' Vietnam tour; battle tactics in Vietnam; Cross' departure from the White House Staff in June 1968; service as Wing Commander at Bergstrom Air Force Base in Austin, TX