Yerevan has “frozen” its participation in the Collective Security Treaty Organization (CSTO) because it failed to uphold its objectives regarding Armenia, Armenian Prime Minister Nikol Pashinyan told France 24 on Feb. 22. Armenia’s relationship with the CSTO, a Russian-led bloc of six countries, has grown lukewarm recently as Moscow failed to prevent Azerbaijan’s lightning offensive into Nagorno-Karabakh last September, despite the presence of Russian peacekeepers on the ground. The brief war ended the existence of a Yerevan-backed self-proclaimed republic in the region and drove out over 100,…