Eleftherios Kyriakou Venizelos (Ελευθέριος Κυριάκου Βενιζέλος, elefˈθeri.os cirˈʝaku veniˈzelos; – 18 March 1936) was a Cretan Greek statesman and prominent leader of the Greek national liberation movement. He is noted for his contribution to the expansion of Greece and promotion of liberal-democratic policies. As leader of the Liberal Party, he held office as prime minister of Greece for over 12 years, spanning eight terms between 1910 and 1933. During his governance, Venizelos entered in diplomatic cooperation with the Great Powers and had profound influence on the internal and external affairs of Greece. He has therefore been labelled as "The Maker of Modern Greece" and is still widely known as the "Ethnarch".
His first entry into the international scene was with his significant role in the autonomy of the Cretan State and later in the union of Crete with Greece. In 1909, he was invited to Athens to resolve the political deadlock and became the country's Prime Minister. He initiated constitutional and economic reforms that set the basis for the modernization of Greek society, and reorganized both the Greek Army and the Greek Navy in preparation of future conflicts. Before the Balkan Wars of 1912–1913, Venizelos' catalytic role helped gain Greece entrance to the Balkan League, an alliance of the Balkan states against the Ottoman Empire. Through his diplomatic acumen with the Great Powers and with the other Balkan countries, Greece doubled its area and population with the liberation of Macedonia, Epirus, and most of the Aegean islands.
In World War I (1914–1918), he brought Greece on the side of the Allies, further expanding the Greek borders. However, his pro-Allied foreign policy brought him into conflict with the nonaligned faction of Constantine I of Greece, causing the National Schism of the 1910s. The Schism became an unofficial civil war, with the struggle for power between the two groups polarizing the population between the royalists and Venizelists for decades.