'Syria provides the US & Sunni allies to step up their 'irregular warfare capabilities'"

"... The Sunni countries have a strong interest in stepping up their own irregular warfare capabilities if they are to keep pace with Iran during the ongoing security competition.The civil war in Syria provides an opportunity for the United States and its Sunni allies to do just that. For the United States, supporting Syria's rebels would constitute a classic unconventional warfare campaign, a basic Special Forces mission. Such missions are typically covert and usually performed in cooperation with regional allies. So, U.S. and GCC intelligence officers and special forces could use an unconventional warfare campaign in Syria as an opportunity to exchange skills and training, share resources, improve trust, and establish combined operational procedures. Such field experience would be highly useful in future contingencies. Equally important, it would reassure the Sunni countries that the United States will be a reliable ally against Iran.
Normally, the goals of a combined U.S.-GCC unconventional warfare campaign in Syria would be the overthrow of the Assad regime and the establishment of a government friendly to U.S. and Gulf Sunni interests. However, policymakers should recognize that unconventional warfare campaigns are fragile projects with no assurance of success. They can take years to run their course with plenty of opportunity for embarrassments along the way. The Syrian war is proving to be just as dirty as any other modern proxy war, with both sides apparently guilty of war crimes. Rather than committing to the goal of overthrowing the Assad regime, an elusive task that could result in an unpleasant spiral of escalation, the U.S. should limit itself to the goal of growing coalition irregular warfare expertise.
But to improve the odds of achieving this limited goal, policymakers should expand U.S. participation beyond its current limits. They should not rule out providing lethal assistance to the rebels not available through other partners. U.S. special forces advisers and trainers should be allowed to visit rebel sanctuary camps in Turkey and Syria. Finally, U.S. policymakers should consider the limited use of air power -- for example, drones for intelligence-gathering and close air support. Since the principal U.S. goal would be the buildup of GCC irregular warfare capacity, GCC intelligence and special forces officers should have the lead, with U.S. officers supporting them. This approach would do the most to build overall alliance special operations capacity while limiting U.S. exposure and risk.
Some will no doubt criticize this approach as an exploitation of the humanitarian disaster in Syria to allow the U.S. and its allies to refine some unpleasant techniques.... ..."