The Treaty of Vis (Serbo-Croatian and Slovene: Viški sporazum, Cyrillic alphabet: Вишки споразум), also known as the Tito–Šubašić Agreement, was an attempt by the Western Powers to merge the royal Yugoslav government in exile with the Communist-led Partisans who were fighting the Axis occupation of Yugoslavia in the Second World War and were de facto rulers on the liberated territories.