As Syrian rebels confront crushing defeat in Aleppo, could Saudi Arabia and Turkey be drawn into the war?

With rebel forces facing the prospect of a crushing defeat by Syria’s Russian-backed regime, their allies Saudi Arabia and Turkey may send in limited numbers of ground troops, analysts say.
Riyadh on Thursday left open the possibility of deploying soldiers, saying it would “contribute positively” if the US-led coalition against Islamic State (IS) in Syria decides on ground action.
The fate of Saudi-backed Syrian armed opposition groups fighting to topple President Bashar al-Assad is also a major concern for the kingdom.
“I think Saudi Arabia is desperate to do something in Syria,” said Andreas Krieg, of the Department of Defence Studies at King’s College London.
Krieg said the “moderate” opposition is in danger of being routed if Aleppo falls to the regime, whose forces have closed in on Syria’s second city, backed by intense Russian air strikes.
I think Saudi Arabia is desperate to do something in Syria
“This is a problem for Saudi and Qatar as they have massively invested into Syria via the moderate opposition as their surrogate on the ground,” said Krieg, who also serves as a consultant to the Qatari armed forces.