Major General Georgios Manioudakis was born in Chania, Crete in 1947. He graduated from the Military Academy in 1968 and served as a platoon leader, company commander and aircraft pilot at various signal and army aviation units from 1969 to 1982.
He was assigned to Headquarters AFSOUTH in Naples, Italy as a staff officer in the Electronic Warfare Branch of the Operations Division from 1982 to 1985. He served as Commander, 495th Signal Battalion from 1985 to 1986 and following his graduation from the Army War College in 1987, he served as Commander, 500th Signal Battalion until 1989.
After serving as a staff officer at the Plans and Operations Directorate of the Hellenic National Defence General Staff (H.N.D.G.S.) from 1989 to 1992 and as Commander, Signal Directorate of the D Corps from1992 to 1994, General Manioudakis was assigned as the Faculty Advisor at the Military Academy in 1994.