 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 London Pact 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 Lissa, Lagosta, Sebenico, and other localities on the Dalmatian coast.