Rear Adm. Horn is a native of Philadelphia, and Audubon, N.J. He graduated from the United States Naval Academy in May 1980 with a Bachelor of Science degree in Mechanical Engineering. Horn’s first duty assignment was in USS Sampson (DDG 10). Subsequent sea duty assignments include USS Robert G. Bradley (FFG 49), USS Ticonderoga (CG 47), and USS Anzio (CG 68). He commanded USS Stout (DDG 55) and USS Lake Erie (CG 70). While in command of Lake Erie, the ship conducted multiple successful ballistic missile engagements and won the Spokane Trophy, two Edward F. Ney awards, and two Battle "Es." Horn has deployed to the Mediterranean Sea, Arabian Gulf, Red Sea, Indian Ocean, Eastern and Western Pacific, and conducted extensive operations in the Caribbean and Baltic Seas and Atlantic Ocean.
Ashore, Horn earned a Master of Science degree in Operations Research from the Naval Postgraduate School and is a Massachusetts Institute of Technology Seminar XXI alumni. He has served on the Joint Staff (J8) and the staffs of Joint Forces Command (J6), United States Fleet Forces (N8), and OPNAV (N86). Horn has also been assigned as deputy director, Missile Defense Agency. His previous assignment was program executive, Aegis Ballistic Missile Defense and commander, Navy Air and Missile Defense Command.
Horn’s personal awards include the Defense Superior Service Medal (Two Awards), Legion of Merit (Two), Defense Meritorious Service Medal, Meritorious Service Medal (Four), Navy and Marine Corps Commendation Medal (Two), and Navy and Marine Corps Achievement Medal (Two).