CSTO Erodes as Armenia Defects; Alliance Shell Undermines Russian Deterrence

Russia's Collective Security Treaty Organization (CSTO) is fracturing as Armenia, a founding member, openly defies Moscow and suspends participation, exposing the alliance's mutual-defense clause as hollow. The defection signals declining Russian influence in the post-Soviet space and offers the West a strategic opening, though the full extent of CSTO dysfunction remains unquantified.

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