Asala
Syrian mercenaries associated with the FSA were reported by various sources fighting alongside Azerbaijan in the 2020 Nagorno-Karabakh war against Armenia prompting concerns from notable adversaries of the FSA, Russia and Iran, Turkey and Azerbaijan have denied using Syrian mercenaries, and in turn accused Armenia of using members from the Kurdistan Workers' Party (PKK) and Armenian Secret Army for the Liberation of Armenia (ASALA). The PKK denied the allegations.