The largest liberated territory in occupied Europe was created Creating by the Partisans in western Serbia , and was known as the Republic of Užice .

Rebels shared power on the liberated territory ; the center of the Partisan liberated territory was in Užice , and Chetniks had their headquarters on Ravna Gora .

The operation was directed Aiming against the Užice Republic , the first of several `` free territories '' liberated by the Yugoslav Partisans .

It was named Name_conferral after the town of Užice , and is associated Collaboration with the First Enemy Offensive ( ) in Yugoslavian historiography .

After the offensive commenced Process_start on 20 September 1941 , the Partisans initially received Receiving assistance from local Chetnik formations in opposing Agree_or_refuse_to_act the Germans , but after weeks of disagreement Quarreling and low-level conflict Hostile_encounter between the two insurgent factions about how the resistance should proceed , the Chetniks launched an attack Attack on the Partisans in the towns of Užice and Požega on November 1 which resulted in the Chetniks being repulsed Defending .