Armenian PM Nikol Pashinyan spoke about the reasons to apply to the CSTO.

"Saying that Azerbaijan carried out aggression against we mean that it also established control over a certain territory," he noted.

"That's why we applied to the CSTO, because if there was no seizure of territory...," Pashinyan added.

According to him, Armenia appealed to the CSTO on the basis of Article 4 of the Collective Security Treaty. "It says that aggression against one member state is also considered aggression against other states. We applied to the CSTO for assistance and support, including military support to restore the territorial integrity of Armenia and ensure the withdrawal of Azerbaijani Armed Forces from the territory of Armenia," the PM added