 Between 20 and 26 July 1941 local KPJ leaders organised three Partisan detachments , armed with about 200 rifles and seven light machine guns , in the immediate vicinity of Drvar ; one was the Kamenica Detachment . Men from Kamenica had previously established a camp in a nearby forest for weapons and supplies . Bursać was one of the village 's most active women , collecting food and clothing for the insurgents and serving as a courier for the Kamenica camp . On 27 July the Partisans liberated Drvar , beginning the uprising in Bosnia @-@ Herzegovina . Over the next few days , other parts of Bosanska Krajina were also liberated , although at this stage the KPJ had little control of the Serb villagers who took up arms . The liberated area around Drvar and Grahovo , under constant attack by the Ustaše , was defended by the Partisans from their surrounding positions . Bursać and other women from Kamenica joined Odbor fonda ( the Funds Committee ) , collecting food , clothing and other supplies for the Partisans , and she made clothes for them from wool and cloth . She joined the League of Communist Youth of Yugoslavia ( Serbo @-@ Croatian : Savez komunističke omladine Jugoslavije , or SKOJ ) in September 1941 . 
