A "lurker" has responded, based on their "hands on" experience in IW and knowledge of Syria:
Opportunities:

- Syria is not a Western occupation, and it is difficult to paint it as such. The most convincing way of directing ire towards the west in relation to the situation in Syria is to accuse Washington, London etc of "doing nothing"
- Syrians dont like ISIS. This means potential volunteers, find it difficult to avoid the reality that the Muslim v. West narrative is overly simplistic
- The sectarian nature of the Syrian war is unavoidable, so it is difficult for extremists to maintain traction for the "Muslims vs West" narrative. or, at least harder than it is when it comes to Pakistan, Afghanistan, Iraq etc


Challenges:


- Scant knowledge amongst volunteers of Syria's political, social or cultural context. ie. it is easier to paint the conflict as whatever you want - for a period of time, at least
- The rise of "doomsday prophecies" around the conflict. (ie that its part of a long foretold religious prediction about the coming of the mehdi/jesus) and heralds the end of the world. Both the Iranians and AQ are using this according to their (slightly) differing religious traditions.
- Fighting in Syria can be seen by volunteers as a duty that does not contradict their loyalty to the UK. This means that UK government efforts to stop them then become seen as a sinister plot to stop them helping Syrians. (Such conspiracies already exist amongst Syrians who believe the only explanation for the lack of military support is due to the West's desire to keep a weak dictator in place so that Israel is not challenged as the regional power)
- Extremely limited trust in HMG following Iraq (and domestic trust scandals)