The Minsk Peace Accords have not been fully implemented by either side and violence is still smoldering along the demarcation line between the Ukrainian military and Russian-backed separatists in the Donbass region of East Ukraine. Violations of the ceasefire are common on both sides, but since last summer heavy weapons have been withdrawn from front line sectors. This may be changing which would ramp up the possibility of a full-blown military conflict once again erupting in Donetsk.
Washington Times: Tanks amass near East Ukraine demarcation line
A T-72 Pro-Russian separatists battle tank is parked with other tanks in a warehouse away from the frontline after being withdrawn from their positions near the town of Novoazovsk in the Donetsk region on October 21, 2015.