“United States and its European and regional Sunni allies intervene to stop President Vladimir Putin from reversing the gains made by mainstream Syrian rebels after more than four years of war?”
Gains? Get seriou!s
The Russians have been very effective in routing Isis. All 5 “free Syrian” army trainees had joined Isis any way. Soon the ground offensive will be fun to watch as obama’s new nuke buddies (the Iranian Army) march relentlessly killing these isis cut throat bastards. I am quite pleased with the great job that has been done so far. We need to leave.