This is a YouTube video showing the front lines in Ukraine over the last two years.  The title translates as Two Years ATO [Anti-terrorist Operation] in Two Minutes; the text in the lower right names the months as they pass.

The description below the video translates, roughly, as

TSN.ua [a Ukrainian news agency] assembled in one video map all hostilities in the Donbass, distributed in Ukrainian media in the last two years.  The first of them began to appear on the network in June 2014 and since July [has been] updated almost daily.  After reviewing a two-minute infographic, you can see how over time the front line changed, and in that period as long as ATO occurred relative lull.

Notice how the front, after some time, stabilized in the north, and then then in the west: by October (ЖОВТЕНЬ) 2014.  What might the Ukrainians have been able to accomplish against this Russian invasion had they been permitted by the Obama administration and/or the Europeans to have actual weapons with which to defend themselves?