I Army Corps (Greece)

I Army Corps Α' Σώμα Στρατού
Formation flag of the I Army Corps
Active	1913–1941, 1946–2013
Country	Greece
Branch	Hellenic Army
Garrison/HQ	Kozani
Motto(s)	Molon labe
Engagements	Macedonian front, Allied Intervention in Southern Russia, Asia Minor Campaign, Greco-Italian War, Greek Civil War, Korean War
Commanders
Notable commanders	Konstantinos Kallaris, Leonidas Paraskevopoulos, Thrasyvoulos Tsakalotos

The I Army Corps (Greek: Α' Σώμα Στρατού, abbr. Α' ΣΣ) was an army corps of the Hellenic Army, founded in December 1913. Originally based in Athens and covering southern Greece, since 1962 it was responsible for covering Greece's northwestern borders (Epirus and Western and Central Macedonia). It was disbanded in 2013.

Following the Balkan Wars of 1912–13, the Hellenic Army began a major reorganization and expansion. For the first time, army corps-level formations were established on a permanent basis. Six corps were provisionally envisioned in August 1913. On 28 November 1913 (O.S.), by Royal Decree the Athens Army Corps was reorganized as a "model" formation. Alongside its constituent units, it was to serve as a training formation for the entire Army. For this purpose, it also included all military schools and academies, and was to be commanded by the head of the French military mission to Greece and extensively staffed by French officers of the mission. The new peacetime establishment was further modified and formalized by Royal Decree on 23 December 1913 (O.S.), and the I Army Corps was officially established on that date, comprising three infantry divisions (1st Infantry Division at Larissa, 2nd Infantry Division at Athens, and the newly raised 13th Infantry Division at Chalkis), a cavalry regiment, an artillery regiment, an engineers regiment and other attendant services. The first Corps commander was Lt. General Konstantinos Kallaris, who had commanded the 2nd Division during the Balkan Wars. I Corps remained loyal to the royal government during National Schism, and was demobilized after the Noemvriana.