On April 14, 1994, on a clear morning over northern Iraq's no fly zone, two U.S. Air Force F 15 jets encountered two U.S.Army Black Hawk helicopters on a routine mission. Within ten minutes, the F-15s misidentified the helicopters and shot them down with fire and forget missiles. For three years, aircraft had patrolled these skies with a near-perfect safety record. Although the Black Hawk's downing was one of the worst air-to-air friendly fire incidents involving U.S. aircraft in military history, the Air Force would officially conclude the pilots had made a reasonable mistake. One victim was ebullient twenty five old intelligence fficer Laura Piper, in love with life and with being an Air Force lieutenant.Movingly written by her mother,A Chain of Events is the story of Lauras final light and the Air orces mishandling of the subsequent investigation. It is a story of duty, patriotism, a others devotion to a daughters memory, and her familys disappointment in a eloved institution.