I still remember when they took control of Yasynuvata back in March or April. Were they driven out and are back now?
I try to read news from both sides in this fight. Nearest I can tell, Ukr. Army attempted to enter Yasynuvata, but were driven back by arty and Grad fire. They lost many men and armor vehicles 2 days ago and have failed yet, to rescue a motorized unit of paras that have been surrounded by Russian separatists for days now.
Just an opinion, but I believe the Ukr.Army needs to dress their lines. They are over-extended. And armor thrust by the Russian separatists could cause untold damage...