 From the time he joined Mihailović in northeastern Bosnia , Đurišić was very critical of Mihailović 's leadership , and argued strongly for all the remaining Chetnik troops to move to the area of the Ljubljana Gap in modern @-@ day Slovenia . At this point Ostojić and Baćović were also questioning Mihailović 's plans . When Mihailović remained unconvinced , Đurišić decided to move to the Ljubljana Gap independent of Mihailović , and arranged for Dimitrije Ljotić 's forces already in the Ljubljana Gap to meet him near Bihać in western Bosnia to assist his movement . When he left Mihailović , he was joined by Chetnik ideologue Dragiša Vasić and the Chetnik detachments commanded by Ostojić and Baćović as well as a large number of refugees . 
