Ukrainians have been dropping artillery on people of the Donbass region for over 8 years now. Ukrainians have tried to ban people from speaking Russian for a while now. I have read that the Ukrainians were massing just outside the Donbass region to attack and finally remove the rebels once and for all ..then Putin stepped in and said nope! And that why so many Ukrainians troops were encircled in eastern Ukraine. But who knows what's really happening over there.