The Hellenic National Defence General Staff (Greek: Γενικό Επιτελείο Εθνικής Άμυνας, abbr.

Its role in peacetime was as a coordinating and senior consultative body at the disposal of the Greek government, and in wartime as the overall headquarters of the Armed Forces.

In recent years, through ongoing efforts at increased inter-services cooperation and integration, the HNDGS has assumed peacetime operational control over the separate branches.

Between 19 December 1968 and 10 August 1977, the HNDGS was abolished, and the Armed Forces Headquarters (Greek: Αρχηγείο Ενόπλων Δυνάμεων, abbr.

He constructs the National Military Strategy after taking into consideration the suggestions of the General Staffs of the Armed Forces Services and according to the directions of the Ministry of Defence he manages and proposes the priority of the armament programs and suggests the general policy directions and priorities on every operational objective.