German Army Group E was withdrawing Escaping through it from Greece towards Bosnia , since the escape Escaping route through Niš and Belgrade had been closed Process_end by the Yugoslav Partisan , Bulgarian and Soviet forces ( during the Belgrade Offensive ) .

The victory at Leskovac allowed Preventing_or_letting John Hunyadi and Đurađ Branković to decisively strike Attack at the isolated Turkish army , and launch Process_start a major offensive Attack , ravaging Destroying Niš and Pirot , and burning Bodily_harm down Vidin .