As I recall the Jordanians looked the other way on what happened on their border during DESERT STORM ...they were not allies of the Coalition. Oh political expediency,I know...I mean what if Saddam won
That place between Syria/Iraq and Jordan is no man's land. Looks like Tatooine. Got sand people too.
I don't know how much "help" Bashir al Assad (the son, not the father) ever gave sunni islamists operating in eastern Syria but in 2007 (elected) he was being hailed by Nancy Pelosi as a "reformer" and she defied the Bush admin sanctions on Syria to take a congressional delegation over there to meet with him and shop in the souk.
Meanwhile in 2007 Senator John and Terayza Kerry also visited Syria for some souk shopping and a nice sit down dinner with Bashir and his British wife Asma.