Russia is free to invade and take out ISIS. Start a campaign.
Are they even attempting to do anything about this?
Yes they do ... to blame the US to be guilty for all and everything in the word as usual as the guy did again here!
Isn't this enough for you and do you really want to have Russian Forces in Syria who back Assad and his regime and then kill ISIS ... and then tell around that they are saving the world, because US incompetence?