The Serb Uprising of 1737–1739 broke out following Austria's defeats against the Ottomans, when the Austrian Emperor issued proclamations that the Christians in the Balkans rise against the Ottoman Empire. The Austrian Emperor called on the Serbs, who were ready to revolt, on 15 June 1737, and stressed that they would fight in an alliance with Russia against a common enemy. The Serbs organized themselves under Serbian Patriarch Arsenije IV. The uprising had a wide geographical extent, from Belgrade to eastern Bosnia and Herzegovina, Montenegro and the Šar Mountain. The Albanian Klimenti tribe also joined the uprising. The failed war prompted Serbs, mostly from Herzegovina, Sandžak, Metohija and Montenegro, to flee under the leadership of Arsenije IV from the Ottoman territories into the Ha