In October 1918, after the successful military operations following the breaking of the Thessaloniki front line, representatives of the Serbian political elite in Vojvodina, having been forced into isolation during the Great War, but having also demonstrated loyalty to Vienna, started forming national committees. Their aim was to separate the territories of Banat, Bačka and Baranja from the existing state and to connect them into a new union state which would resemble the military and political aspirations of the Kingdom of Serbia. This was a long-awaited moment for the Serbs across the state borders for unification with compatriots into a single state. During this enterprise, there emerged various problems from which the opposition of the Hungarian population and their revolutionary government lead by Mihalj Karolji was the most serious. Although in these circumstances people expected a firm attitude, it was found only in the consensus on unification. Differences have appeared in the way of accomplishing the pursuit. The majority, led by the Radical party, advocated for merging of Vojvodina with the Kingdom of Serbia, while a number of Serbs, led by the pre­war Democratic Party representatives, favoured Vojvodina's annexation to the National Council of Slovenians, Croats and Serbs from Croatia, which would, through this body, with the Kingdom of Serbia create a new Yugoslav State. The most influential among the representatives of these political lines were Tihomir Ostojić and Vasa Stajić.