longer be used in the public and administrative sphere. Dalmatia was a strategic region during World War I that both Italy and Serbia intended to seize from Austria-Hungary. Italy joined the Triple Entente Allies in 1915 upon agreeing to the Treaty of London that guaranteed Italy the right to annex a large portion of Dalmatia in exchange for Italy's participation on the Allied side. From 5–6 November 1918, Italian forces were reported to have reached Vis, Lastovo, Šibenik, and other localities on the Dalmatian coast. By the end of hostilities in November 1918, the Italian military had seized control of the entire portion of Dalmatia that had been guaranteed to Italy by the Treaty of London and by 17 November had seized Rijeka as well. In 1918, Admiral Enrico Millo declared himself Italy's Governor of Dalmatia. Famous Italian nationalist Gabriele D'Annunzio supported the seizure of Dalmatia, and proceeded to Zadar in an Italian warship in December 1918. However, in spite of the guarantees of the Treaty of London to Italy of a large portion of Dalmatia and Italian military occupation of claimed territories of Dalmatia, during the peace settlement negotiations of 1919 to 1920, the Fourteen Points of Woodrow Wilson that advocated self-determination of nations took precedence, with Italy only being permitted to annex Zadar from Dalmatia, while the rest of Dalmatia was to be part of Yugoslavia. At the end of World War I, the Austrian Empire disintegrated, and Dalmatia was again split between the Kingdom of Serbs, Croats and Slovenes (later the Kingdom of Yugoslavia) which controlled most of it, and the Kingdom of Italy which held small portions of northern Dalmatia around Zadar and the islands of Cres, Lošinj, and Lastovo. Italy entered World War I in a territorial gamble, mostly to gain Dalmatia. But Italy got only a small part of its pretensions, so Dalmatia mostly stayed Yugoslav. Despite the fact that there were only a few thousand Italian-speakers in Dalmatia, Italian nationalists continued to lay claim to all of Dalmatia. In 1927 Italy signed an agreement with the Croatian fascist, terrorist Ustaše organization. The Ustaše agreed that once they gained power, they will cede to Italy additional territory in Dalmatia and the Bay of Kotor, while renouncing all Croatian claims to Istria, Rijeka, Zadar and the Adriatic Islands. In 1922, the territory of the former Kingdom of Dalmatia was divided into two provinces, the Oblast