During World War I (1914–1918), Italy made a pact with the Allies, the Treaty of London (1915), in which it was promised all of the Austrian Littoral, but not the city of Fiume. After the war, at the Paris Peace Conference, 1919, this delineation of territory was confirmed, with Fiume (or Rijeka) remaining outside of Italian borders and amalgamated into the Kingdom of Serbs, Croats and Slovenes.
