[3] 1st Division was tasked with the occupation of Smyrna and the Erythrae peninsula, and then formed part of the Army of Asia Minor along with the rest of I Corps, evacuated from Russia in late 1919.

[4] The corps was a mainly reserve formation, covering southern Greece while the majority of the Greek army was concentrated in Macedonia and Thrace against Bulgaria.

[3] I Corps was re-established on 16 May 1946 as part of the post-war reconstruction of the Greek armed forces, and comprised the 2nd Infantry Division, the 51st and 61st Brigades, and later the 81st Military Region (Corinth), the 82nd Mil.

[5] With the outbreak of the Greek Civil War, the corps was engaged in combat against the Communist-led Democratic Army of Greece.

Under the command of Lt. Gen. Thrasyvoulos Tsakalotos, it played a major role in clearing southern Greece of the guerrillas and then in the final defeat of the Communists in the battles of Grammos and Vitsi in 1948–1949.

Following the end of the civil war, I Corps, since 1951 based at Trikala, was also responsible for the recruitment of the Greek Expeditionary Force in Korea.