Army corps in the context of "Lieutenant-General"

Lieutenant general (Lt Gen, LTG and similar) is a military rank used in many countries. The rank traces its origins to the Middle Ages, where the title of lieutenant general was held by the second-in-command on the battlefield, who was normally subordinate to a captain general.

In modern armies, lieutenant general normally ranks immediately below general (or colonel general) and above major general; it is equivalent to the navy rank of vice admiral, and in air forces with a separate rank structure, it is equivalent to air marshal. In the United States, a lieutenant general has a three star insignia and commands an army corps, typically made up of three army divisions, and consisting of around 60,000 to 70,000 soldiers.

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.