Do you imagine what these Kurds could do IF we actually armed them with modern weapons?
They are the only fighting force in the region we should be backing. Yet, because of Turkey, or some other reason we are not giving them much more than cursory assistance.
I would bet the Kurds have more heavy weapons than you think. I would bet there are green berets embedded with the Kurds painting target for air support. Finally, the only way for the Kurds to push into Raqqa is with open supply lines. This means that Kurds are supplying from Iraq (even though the map shows the cross as an ISIS attack zone) or via the FSA controlled areas (FSA is fighting with Kurds).