On Sept. 21, Ukrainian Intelligence Service published a report, claiming 23 combatants from the co-called '2nd brigade', located in Luhansk, had filed a request to demob from their division.
According to the report, the militants weren’t pleased with their Russian commanders, who had allegedly forced them to do reconstruction and general labor activities during the relatively solid ceasefire. The Russians didn’t take the request too good, and decided to punish ‘the rebels’.