Syrian Soldier: "Syria are one!"
You can be A Kurd, An Arab, Assyrian, White and still be Syrian. Syrian are people that habitat the land it is not determined by tribe.
But is YPG/PKK a "brother"??
Don't forget Syrians while it's smart to avoid more needless fighting they will back stab at any chance they can get.
Biji says Turkey invasion will be a mere "wolf hunt" just after 20 days they beg for Syrian help.
Lets review some History where YPG/PKK gang attack government along with Jihadist