Amidst general dissatisfaction with the seeming inertia and unattainability of national aspirations under the premiership of the cautious reformist Theotokis, a group of military officers organised a coup in August 1909 and shortly thereafter called to Athens Cretan politician Eleftherios Venizelos, who conveyed a vision of national regeneration. After winning two elections and becoming Prime Minister in 1910, Venizelos initiated wide-ranging fiscal, social, and constitutional reforms, reorganised the military, made Greece a member of the Balkan League, and led the country through the Balkan Wars. By 1913, Greece's territory and population had almost doubled, annexing Crete, Epirus, and Macedonia. In the following years, the struggle between King Constantine I and charismatic Venizelos over the country's foreign policy on the eve of First World War dominated the country's political scene and divided the country into two opposing groups. During parts of WW1, Greece had two governments: A royalist pro-German one in Athens and a Venizelist pro-Entente one in Thessaloniki. The two governments were united in 1917, when Greece officially entered the war on the side of the Entente.