YPG are thr only true leftist faction in the Syrian conflict. If you think the fact that they take money and guns from the US is any different than Mao and Kai-Shek teaming up to fight Japan. Or the USSR getting ships leased to them for dirt cheep from the us. Then you are the problem. You fail to understand the Syrian civil war or even WW2. Also for all my tankies you should know that North Korea sent several tanks to be used by the YPG. They are in the middle of an armed conflict for their lives and their home. When put in that situation they'll take any support from any one. Peace out.