Before entering the war, Italy had made a pact with the Allies, the Treaty of London, in which it was promised all of the Austrian Littoral, but not the city of Fiume. After the war, at the Paris Peace Conference in 1919, this delineation of territory was confirmed, with Fiume remaining outside of Italian borders, instead joined with adjacent Croatian territories into the Kingdom of Serbs, Croats and Slovenes. Moreover, Giolitti's last term saw Italy relinquish control over most of the Albanian territories it gained after World War I, following prolonged combat against Albanian irregulars in Vlorë.