"People's Defense Units#Foreign volunteers" . . . . "People's Protection Units" . . . "Kurdish fighters" . . . . . "People's Protection Units (YPG)" . . "2011" . . . . . . "People's Defence Unit" . . . "PYD/YPG" . . . . . . . . . . . . . . . . . . . . . . "People's Defense Units" . . . . . . "Peoples' Defense Units" . . . . . . . . . . . . "People's Protection Units(YPG)" . . . . . . . . . "YPG" . . . . "135,000 (Including YPJ, 2017 estimate)" . . . . . . "People's Defense Units" . "Peoples Defense Units" . .