. . "North Vietnam" . "USMC sites: tbd" . "Combat Skyspot"@en . . . "Combat Skyspot was the ground-directed bombing (GDB) operation of the Vietnam War by the United States Air Force using Bomb Directing Centrals and by the United States Marine Corps using Course Directing Centrals (\"MSQ-77 and TPQ-10 ground radars\"). Combat Skyspot's command guidance of B-52s and tactical fighters and bombers\u2014\"chiefly flown by F-100's\"\u2014at night and poor weather was used for aerial bombing of strategic, close air support, interdiction, and other targets."@en . . . "USAF sites: 8" . . . . .