Following his appointment to the post of "Höhere SS-und Polizeiführer Sandschak" (Higher SS and Police Leader Sanjak) in September 1943, Karl von Krempler came to be known as the "Sanjak Prince" after his relatively successful formation of the SS Polizei-Selbstschutz-Regiment Sandschak. He went to the Sanjak region in October and took over the local volunteer militia of around 5,000 anti-communist, anti-Serb Muslim men headquartered in Sjenica. This formation was sometimes thereafter called the "Kampfgruppe Krempler" or more derisively the "Muselmanengruppe von Krempler". As the senior Waffen SS officer Karl von Krempler appointed Pačariz as the formal commander of the unit, but as the key military trainer and contact person with German arms and munitions, remained effectively in control. Pačariz participated in the Axis organized Operation Kugelblitz that started on 4 December 1943.