"Large scale deployment of troops"? Has the President suggested this?
As for "safe zones", the presence of those would mean that there will be fewer refugees, and the President clearly stated his support for safe zones during the campaign...
A safe zone is not possible without a couple hundred thousand troops.
If Jordanian, Saudi and Turk, I’m OK with it.
But I’m not OK with US troops on Syrian soil, even the 1000 or so there now.