Assad's regime is in huge trouble
"The regime's eastern holdings are in danger of being totally cut off, a development that would give the rebels a foothold near the heart of Assad's remaining territory.

Western actors, including the US, will have to calculate how a regime defeat will affect the war against ISIS, and decide whether regime collapse is even desirable.

In any case, a break in a long and violent stalemate could be underway. “A military collapse on the regime side is not impossible,” one unnamed diplomat told The Post."