COL George A. Hooker was commissioned as an Army Officer upon graduation from Officer Candidate School at Fort Benning, Georgia on 24 June 1959. His first assignment as a commissioned officer was as 1st Infantry Training Brigade in Fort Ord, California, from 1959-1961.

His subsequent duty assignments were: Platoon Leader, Troop B, 1st Squadron, 1st Cavalry, Vietnam; Civil Affairs Officer, 1st Squadron, 1st Cavalry, Vietnam; Commander, Headquarters Company, 118th Field Artillery Brigade, Georgia Army National Guard, Savannah, Georgia; State Education Officer, Headquarters State Area Command, Georgia Army National Guard, Atlanta, Georgia; Recruiting and Retention Officer, Headquarters State Area Command, Georgia Army National Guard, Atlanta, Georgia; Commander, 1 Squadron, 108th Armored Regiment, 48th Infantry Brigade, Georgia Army National Guard, Calhoun, Georgia; and Military Personnel Officer, Headquarters State Area Command, Atlanta, Georgia. His last duty assignment was served as Chief of Staff, Georgia Army National Guard, Headquarters State Area Command, Atlanta, Georgia.

His military education includes: United States Army Command and General Staff College and John F. Kennedy Special Warfare Center.

COL Hooker's highest military awards include: Defense Department Meritorious Service Medal, six Distinguished Flying Crosses, Legion of Merit, Defense Superior Service Medal, Bronze Star (w/2 OLCs), Air Medal w/“V” device 46 times, Joint Service Commendation Medal, Army Commendation Medal (2nd award), Army Good Conduct Medal, National Defense Service Medal, Army Overseas Service Medal (6 awards), Vietnam Service Medal w/5 campaign battle stars, Meritorious Service Medal (2nd Award), Vietnam Gallantry Cross w/Palm three times, and Vietnam Campaign Medal.