Colonel Harry Gailen Riley was commissioned Military Intelligence Officer upon graduation from Officer Candidate School Class 13 on 22 September 1966. His first duty assignment was as Executive Officer, U.S. Army Signal Research Unit #2 APO New York. | His subsequent duty assignments include:  Commander, U.S. Army Signal Research Unit #2, APO New York;  Military Advisor, Military Assistance Command Vietnam, Pleiku, Vietnam;  Commander, Battalion Combat Assistance Team, Tuy Hoa, Vietnam;  Cryptologic Staff Officer, National Security Agency, Fort Meade, Maryland;  Cryptologic Staff Officer, U.S. Army Field Station, Augsburg, W Germany;  Commander, 2nd Operations Bn, U.S. Army Field Station, Augsburg, W Germany;  Cryptologic Staff Officer, Deputy Chief of Staff  Intelligence HQ DA, Washington, D.C.;  Intelligence Staff Officer, Office Chief of Staff Army, HQ DA, Washington, D.C.;  Commander, Field Operating Agency, HQ DA, Fort Meade, Maryland;  Division Chief, National Security Agency, Fort Meade, Maryland;  Commander, 712th Military Intelligence Battalion, Augsburg, W Germany; and Chief, Theater Forces Division National Security Agency, Fort George G. Meade, Maryland. | Colonel Riley is a graduate of Intelligence Staff Officer Course;  Military Intelligence Advanced Course;  Junior Officer Cryptologic Career Program;  Military Intelligence Advanced Cryptologic Course;  Command and General Staff College;  Electronic Warfare Office Course;  Airborne Course;  Military Operations Familiarization Course;  National Senior Cryptologic Course. | His military awards include: Sliver Star;  Bronze Star Medal; Defense Meritorious Service Medal;  Meritorious Service Medal 92); Air Medal; Joint Service Commendation Medal;  Army Commendation Medal;  Army Achievement medal;  Meritorious Unit Award;  Air Force Outstanding Unit Award;  Army Good Conduct Medal.