After World War I, an Arab Republic, "Al-Jumhuriya al-Trabulsiya", or "Tripolitanian Republic", declared the independence of Tripolitania from Italian Libya. The proclamation of the Tripolitanian Republic in autumn 1918 was followed by a formal declaration of independence at the 1919 Paris Peace Conference (Treaty of Versailles). This was the first formally declared republican form of government in the Arab world, but it gained little support from international powers, and disintegrated by 1923. Italy under Fascist dictator Benito Mussolini managed to reestablish full control over Libya by 1930.