Question: What role over the Hellenic Army did the person who had a dispute with Eleftherios Venizelos have?

Context paragraphs:
Greek legislative election, May 1915: Parliamentary elections were held in Greece on 13 June [O.S. 31 May] 1915 .  Eleftherios Venizelos and his Liberal Party achieved a landslide victory, winning 187 of the 316 seats in Parliament.  However, despite the victory of Liberals, Venizelos' dispute with King Constantine I remained.  Fresh elections were held in December, which were boycotted by Venizelos and his party.  However, Venizelos resurrected the party in June 1917, when King Constantine was forced to abdicate and leave the country, an event known as the National Schism.  As a result, it was popularly nicknamed the "Parliament of the Lazaruses" (Βουλή των Λαζάρων), and continued until the general election of October 1920.

Constantine I of Greece: Constantine I (Greek: Κωνσταντῖνος Α΄ , "Konstantínos I"; 2 August [O.S. 21 July] 1868 – 11 January 1923) was King of Greece from 1913 to 1917 and from 1920 to 1922.  He was commander-in-chief of the Hellenic Army during the unsuccessful Greco-Turkish War of 1897 and led the Greek forces during the successful Balkan Wars of 1912–1913, in which Greece expanded to include Thessaloniki, doubling in area and population.  He succeeded to the throne of Greece on 18 March 1913, following his father's assassination.

Eleftherios Venizelos Museum of Chalepa: Eleftherios Venizelos Museum of Chalepa is an historic house museum in Chania, Crete, Greece.  It is the paternal house of Eleftherios Venizelos, where he lived from 1880 to 1910, and occasionally, from 1927 to 1935.  In March 2002, the Greek state assumed the ownership of the Venizelos residence, and then ceded it to the Eleftherios K. Venizelos Foundation.  It is an historical house museum.

National Defence Army Corps: The Army of National Defence (Greek: Στρατός Εθνικής Αμύνης ) was the military force of the Provisional Government of National Defence, a pro-Allied government led by Eleftherios Venizelos in Thessaloniki in 1916–17, against the royal government of King Constantine I in Athens, during the so-called National Schism.  By the spring of 1917, three infantry divisions formed the National Defence Army Corps (Σώμα Στρατού Εθνικής Αμύνης).  Following the ousting of King Constantine and the reunification of Greece under the leadership of Venizelos in June 1917, the Corps continued as part of the reconstituted Hellenic Army until 1920, when it became the Army of Thrace.

Eleftherios Venizelos Foundation: Eleftherios Venizelos Foundation is a national research foundation in Chania, Crete, founded on the 26th of March 2000.  It is a center for research and study of the work and the era of Eleftherios Venizelos.  Its activities include organizing events, conferences, education, research, awards, grants, exhibitions, collaborations and publications.  The Foundation premises are located in the residence of Eleftherios Venizelos in Halepa square, Chania.

French military mission to Greece (1911–14): The 1911–1914 French military mission to Greece was called to Greece by the government of Eleftherios Venizelos to reorganize the Hellenic Army, parallel to a British naval mission for the Royal Hellenic Navy.  The French mission arrived in January 1911, under the command of General Joseph-Paul Eydoux, replaced in April 1914 by General Étienne de Villaret (who had also served in a mission to Japan earlier in his career).  It remained in the country until the outbreak of World War I in August 1914, when it was repatriated.

Eleftherios Venizelos (film): Eleftherios Venizelos 1910-1927 (Greek: "Ελευθέριος Βενιζέλος" ) is a 1980 Greek biographical film of one of the most famous leaders of the Greek political scene of the 20th century Eleftherios Venizelos.  The movie stars Dimitris Murat, Manos Katrakis and Anna Kalouta.

Mournies: Mournies (Greek: Μουρνιές ) is a village in Crete, in the regional unit of Chania.  Between 1997 and 2010, it was the seat of the former municipality of Eleftherios Venizelos.  Mournies is famous for being the place of birth of the statesman Eleftherios Venizelos.

Eleftherios Venizelos (sculpture): Eleftherios Venizelos is an outdoor sculpture of Eleftherios Venizelos, installed outside the Embassy of Greece, on Massachusetts Avenue between Sheridan Circle and 22nd Street, NW, in Embassy Row, Washington, D.C., United States.  It was erected by the Hellenic Parliament in 2009.  Near the statue is a plaque with the inscription: .

Eleftherios Venizelos, Crete: Eleftherios Venizelos (Greek: Ελευθέριος Βενιζέλος ) is a former municipality in the Chania regional unit, Crete, Greece.  Since the 2011 local government reform it is part of the municipality Chania, of which it is a municipal unit.  The municipal unit has an area of 18.806 km2 .  It is centred on the town of Mournies, due south of the city of Chania.  The municipality was named for the Greek statesman Eleftherios Venizelos, who was born in Mournies.  Other settlements include the villages of Nerokouros, Vandes and Agios Georgios.  s of 2011 , the population of the municipal unit was 10,586.

Supporting paragraphs: Greek legislative election, May 1915 Constantine I of Greece
Answer: commander-in-chief