Barack Obama actually said...
The violence that's taking place there is facilitated in part, in large part because of Russian support and they have the ability to move those separatist in a different direction. If Mr. Putin makes a decision that we are not going to allow heavy armament and the flow of fighters into Ukraine across the Ukrainian Russian border, then it will stop.
Context
Obama discusses the role of Russian support in the violence in Ukraine and urges Putin to stop the flow of arms and fighters.
07/17/2014