Greco-Turkish War (1897)
The Greco-Turkish War of 1897, also called the Thirty Days' War and known in Greece as the Black '97 (, "Mauro '97") or the Unfortunate War (Ατυχής πόλεμος, "Atychis polemos") (Turkish: "1897 Osmanlı-Yunan Savaşı" or "1897 Türk-Yunan Savaşı"), was a war fought between the Kingdom of Greece and the Ottoman Empire. Its immediate cause was the question over the status of the Ottoman province of Crete, whose Greek majority long desired union with Greece. Despite the Ottoman victory on the field, an autonomous Cretan State under Ottoman suzerainty was established the following year (as a result of the intervention of the Great Powers after the war), with Prince George of Greece and Denmark as its first High Commissioner.
Enosis
Thessaly remained under Ottoman control after the formation of the Kingdom of Greece. Although parts of the territory had participated in the initial uprisings in the Greek War of Independence in 1821, the revolts had been swiftly crushed. During the Russo-Turkish War of 1877–78 Greece remained neutral, as a result of assurances by the Great Powers that her territorial claims on the Ottoman Empire would be considered after the war. In 1881 Greece and the Ottoman Empire signed the Convention of Constantinople which created a new Greco-Turkish border, incorporating most of Thessaly into Greece.