Greece attempted to stay neutral in World War I and failed miserably. Amid elections, coups, overthrows, Allied interventions, the Greek Army was ultimately demobilized and sent home. By June 1917 the tide had turned and Greece entered the war on the Entente side. Below is a list of the leaders of the reconstituted Greek Army that fought in World War I.
Commander in Chief: Panayiotis Danglis (January-November 1918)
Chief of the General Staff (1914-18): Victor Dousmanis (to August 1916), Constantin Moschopoulos (August 1916-February 1917), Ioannis Metaxis (acting chief February-June 1917), Anastasios Charalambis (June-December 1917), Georgios Leonardapoulos (December 1917-February 1918), Theodoros Pangalos (February 1918 to the end of the war)
Army Corps A: Leonidas Paraskevopoulos (from formation in December 1917 to end of the war)
Army Corps B: Konstantinos Miliotis-Komninos (from formation in April 1918 to end of the war)
Corps of National Defense: Leonidas Paraskevopoulos (from formation in May 1917 to July 1917), Emmanuel Zymbrakakis (July 1917 to end of the war)
1 Division: Konstantinos Nieder (from formation December 1917 to end of the war)
2 Division: Ioulianos Kontaratos (from formation in March 1918 to end of the war)
3 Division: Nikolaos Triloupes (from formation in May 1918 to end of the war)
4 Division: Nikolaos Vlachopoulos (from formation in May 1918 to end of the war)
9 Division: Gregios Leonardopoulos (from formation in February 1918 to the end of the war)
13 Division: Iakovos Negrepontes (from formation in January 1918 to end of the war)
14 Division: Ioannes Orphanidis (from formation in June 1918 to the end of the war)
Archipelgo Division: Demetrios Ioannou (from formation in April 1917 to the end of the war)
Crete Division: Ioannes Phikiores (at formation in April 1917), Epaminondas Zymbrakakis (April-July 1917), Panagiotas Speliades (July 1917 to the end of the war)
Seres Division: (Nikolaos Christodoulou from formation in April 1917 to April 1918), Epaminondas Zymbrakakis (April 1918 to end of the war)
An 8 Division was recreated, but never served as a unit, its constituent parts being farmed out to other divisions.
The following units were demobilized and not reformed:
Corps: C, D, and E
Divisions: 5, 6, 7, 10, 11, and 12