 On 13 June 1942 Drvar was retaken by the Partisans , with Bursać 's labour company clearing rubble and repairing houses in the town . The company also helped in working the land of families whose men were away fighting with the Partisans . In July , Partisan units composed of fighters from Serbia and Montenegro came to Drvar , and Bursać helped carry their wounded to field hospitals in the mountains . She was one of the most active members of Kamenica 's SKOJ organisation , which sometimes met at her house . The Partisan @-@ held territory around Drvar expanded significantly , and included the Sanica River valley in late July 1942 . The valley 's primarily non @-@ Serb population had fled before the advancing Partisans , whom they feared because of Ustaše propaganda . The Partisan command engaged young people from western Bosanska Krajina to harvest wheat and other crops from the valley , transporting them to storage facilities on Mount Grmeč . The workers ( mostly young women ) were organised into military @-@ style units , which were merged in mid @-@ August into the four @-@ battalion 1st Krajina Agricultural Shock Brigade . Bursać was appointed political commissar of the 3rd Company of the brigade 's 2nd Battalion . Guarded by Partisan units , the brigade completed its work despite attacks by enemy planes . Bursać was admitted to the KPJ at the end of summer 1942 ; at the beginning of 1943 , she was president of the village committee of the United Federation of Anti @-@ Fascist Youth of Yugoslavia ( Serbo @-@ Croatian : Ujedinjeni savez antifašističke omladine Jugoslavije , or USAOJ ) . 
