From my armchair a good explanation of what is the situation in Afrin, NW Syria; an area controlled by the Kurdish YPG, but cut off from the main YPG enclave along the Turkish border.

Link:http://www.thedrive.com/the-war-zone...hy-it-matters?

The map is from the BBC's report:http://www.bbc.co.uk/news/world-middle-east-42759944