Shortly before the Axis invasion of the Kingdom of Yugoslavia in April 1941, Pećanac was requested by the
Yugoslav Ministry of the Army and Navy to prepare for guerrilla operations and guard the southern area of Serbia, Macedonia, and Kosovo from pro-Bulgarians and pro-Albanians rebels. He was given money and weapons, and managed to arm several hundred men in the
Toplica River valley in southern Serbia. Pećanac's force remained intact after the German occupation of Serbia and supplemented its strength from Serb refugees fleeing Macedonia and Kosovo. Pećanac's detachments fought against Albanian bands in the early summer of 1941. At this time and for a considerable time after, only detachments under Pećanac were identified by the term "Chetnik". With the rise of the communist
Partisans, Pećanac gave up any interest in resistance and by late August reached agreements with both the Serbian
puppet government and the German authorities to carry out attacks against the Partisans. While he was concluding arrangements with the Germans, on 18 August 1941 Pećanac received a letter from
Draža Mihailović requesting an agreement be reached where Pećanac would control the Chetniks south of the
Western Morava River while Mihailović would control the Chetniks in all other areas. Pećanac declined his request and suggested that he might offer Mihailović the
chief of staff position and recommended Mihailović's detachments disband and join his detachments. In the meantime, Pećanac had arranged for the transfer of several thousand of his Chetniks to the Serbian Gendarmerie to act as German auxiliaries. On 27 August, Pećanac issued an open "Proclamation to the Dear People", in which he portrayed himself as a defender and protector of Serbs and called "on detachments that have been formed without his approval" to come together under his command. He demanded that individuals hiding in the forests immediately return to their homes and that acts of sabotage against the occupiers cease or the perpetrators would face death. In September 1941, some of Pećanac's subordinates broke ranks to join with the Partisans in fighting the Germans and their Serbian auxiliaries. In the Kopaonik region, a previously loyal subordinate of Pećanac began attacking local gendarmerie stations and clashing with armed bands of Albanian Muslims. By the end of October, the Germans decided to stop arming the "unreliable" elements within Pećanac's Chetniks, and attached the remainder to their other Serbian auxiliary forces. On November 16, the German occupiers held a meeting in
Niš between representatives of the
Serbian puppet government and prominent Albanian collaborators from
Kosovo to stop the continuation of ethnic and religious violence between collaborationist groups. The Albanian side blamed the Serbian side for instigating the conflict, citing the involvement of Pećanac's men in the
Battle of Novi Pazar. Pećanac was forced to answer to the quisling government's Minister of Interior
Milan Aćimović and a German representative. He said that his commander Mešan Đurović had possibly participated in the attack and banned him from attacking Albanian forces in the region. In return, the Germans guaranteed that Albanian forces would not enter Serbian territory as often. On 7 October 1941, Pećanac sent a request to
Milan Nedić, the head of the Serbian puppet government, for stronger organisation, supplies, arms, salary funds, and more. Over time, his requests were fulfilled and a German
liaison officer was appointed at Pećanac's headquarters to help coordinate actions. According to German data, on 17 January 1942 a total of 72 Chetnik officers and 7,963 men were being provided for by the Serbian
Gendarmerie Command. This fell short of the maximum authorised size of 8,745 men and included two or three thousand of Mihailović's Chetniks who were legalised in November 1941. In the same month, Pećanac sought permission from the Italians for his forces to move into eastern
Montenegro, but was refused over Italian concerns that the Chetniks would move into the Sandžak. In April 1942, the German Commanding General in Serbia,
General der Artillerie (General)
Paul Bader, issued orders giving unit numbers C39 to C101 to the Pećanac Chetnik detachments, which were put under the command of the local German division or area command post. These orders also required the deployment of a German liaison officer with all detachments engaged in operations, and limited their movement outside their assigned area. Supply of arms and ammunition was also controlled. In July 1942, Mihailović arranged for the Yugoslav government-in-exile to denounce Pećanac as a traitor. His continuing collaboration ruined what remained of the reputation he had developed in the Balkan Wars and World War I. The Germans soon found that Pećanac's units were inefficient, unreliable, and of little military use. Pećanac's Chetniks regularly clashed and had rivalries with other German auxiliaries, such as the
Serbian State Guard and
Serbian Volunteer Command, as well as with Mihailović's Chetniks. The Germans and the puppet government commenced disbanding them in September 1942, and all but one were dissolved by the end of 1942. The last detachment was dissolved in March 1943. Pećanac's followers were dispersed to other German auxiliary forces, German labour units, and prisoner-of-war camps. Many deserted to join Mihailović. Nothing is known of Pećanac's activities in the months that followed except that he was interned for some time by the Serbian puppet government. ==Death==