A key factor in the negotiations concerns the status of the controlled zones in the #Donbas region. The mandatory evacuation zones in areas controlled by #Ukraine cover an area of approximately 2520 km². The total area of the #Donetsk region controlled by Ukraine is approximately 4130 km². This means that 1610 km² of the Donetsk region (Ukraine) remain in a zone where evacuation is recommended, but not mandatory. In other words