 Pašić was dismayed with the discovery that the Allies had promised to give Italy a substantial portion of Dalmatia and believed that the Committee should attempt to convince the Allies that this was unacceptable and an injustice.In 1917, Pašić, representing the Serbian government, and Trumbić, representing the Yugoslav Committee (including twelve Croats, three Serbs, and one Slovene) signed the Corfu Declaration on the Greek island of Corfu that declared the intention to create a Yugoslav state to be known as the Kingdom of Serbs, Croats, and Slovenes that was to be headed by a "constitutional, democratic, and parliamentary monarchy" headed by the Serbian ruling dynasty, the House of Karađorđević.At the end of World War I, the National Council of Slovenes, Croats and Serbs was formed in Zagreb.