Hellenic Army | 7,639 followers on LinkedIn. The Hellenic Army (Greek: Ελληνικός Στρατός, Ellinikós Stratós, sometimes abbreviated as ΕΣ), formed in 1828, is the land force of Greece (with Hellenic being a synonym for Greek). Along with the Hellenic Air Force (HAF) and the Hellenic Navy (HN), it makes up the Hellenic Armed Forces. It is currently the largest branch of the three.