Soumilas as a Lt. General, 1922
|Allegiance||Kingdom of Greece|
|Years of service||1882–1917, 1920–1923|
|Commands held||III Army Corps|
|Battles/wars||Greco-Turkish War of 1897, Balkan Wars, Asia Minor Campaign|
He was born in Leucas (then under British rule) on 1 January 1861. He joined the Hellenic Army on 2 August 1882, and later enrolled in the NCO School, from where he graduated in August 1888 as a Second Lieutenant of Infantry. He served as a topography instructor and in the newly established Hellenic Military Geographical Service, and participated in the Greco-Turkish War of 1897 and the Balkan Wars. During the latter he commanded the 3rd Battalion of the 11th Infantry Regiment, and occasionally substituted for the regimental commander as well.
As a royalist, he was dismissed from the Army in 1917–1920 during the National Schism. He was reinstated with the electoral defeat of Eleftherios Venizelos in November 1920 which brought the royalist opposition to power, and assumed command of the Xanthi Division in Eastern Thrace. In May 1921 he was transferred to command the 10th Infantry Division in Anatolia, and he led it in the Greek summer offensive and the advance towards the Sakarya river. In 1922 he was placed in command of the III Army Corps, which he commanded during the collapse and retreat of the Greek army from Anatolia in August 1922.
- Note: Greece officially adopted the Gregorian calendar on 16 February 1923 (which became 1 March). All dates prior to that, unless specifically denoted, are Old Style.
- Μεγάλη Στρατιωτικὴ καὶ Ναυτικὴ Ἐγκυκλοπαιδεία. Tόμος Ἔκτος: Σαράντα Ἐκκλησίαι–Ὤχρα [Great Military and Naval Encyclopaedia. Volume VI: Kirk Kilisse–Ochre] (in Greek). 6. Athens: Ἔκδοσις Μεγάλης Στρατιωτικῆς καὶ Ναυτικῆς Ἐγκυκλοπαιδείας. 1930. pp. 120–121. OCLC 31255024.