You haven't looked deep into Ukrainian situation, do you? Western European countries have continuously expressed their frustration at the fact that Ukraine does

You haven't looked deep into Ukrainian situation, do you? Western European countries have continuously expressed their frustration at the fact that Ukraine does not follow the Minsk agreements to no avail. They would like for mutual sanctions between them and Russia to be gone as soon as possible and Ukrainian unwillingness to follow Minsk agreements silently supported by US (and not so silently via supplies of lethal military equipment) makes it harder (since the civil war is still ongoing). Meanwhile Derkach tapes have shown that Ukraine wasn't far from a puppet state and for current government just a little warning from US was enough to stop any investigations into potential Poroshenko treason just because it may influence US elections. Just think about it! Also US has a significant influence over WMF, which openly dictates how Ukraine should behave in certain key areas.