Contrary to an agreement to extend the truce, with the arrival of belligerent Telli Hasan Pasha (Hasan Pasha Predojević) as the beylerbey of the Eyalet of Bosnia in early 1591, tensions once again increased along the border between Croatia and the Ottoman Empire. Hasan Pasha immediately began to gather an army around Banja Luka and prepared for an offensive on Croatia. Croatian Ban Thomas Erdődy expected attacks on Bihać and Sisak.