On December 15, 1944, Maj. Alton Glenn Miller, commanding officer of the Army Air Force Band (Special), boarded a plane in England bound for France with Lt. Col. Norman Francis Baessell. Somewhere over the English Channel the plane vanished. No trace of the aircraft or its occupants has ever been found. To this day Miller, Baessell, and the pilot, John Robert Stuart Morgan, are classified as missing in action.

Weaving together cultural and military history, Glenn Miller Declassified tells the story of the musical legend Miller and his military career as commanding...