Armenia has no intention of resuming its participation in the Collective Security Treaty Organization (CSTO). This was stated by the country’s Foreign Minister, Ararat Mirzoyan, on October 28, in response to a suggestion by the organization’s former Secretary General, Nikolai Bordyuzha, that Yerevan should be expelled from the bloc.

"If other members of this structure or the General Secretariat are making such statements, it is in vain. We do not intend to change our position, and we do not foresee a return to the CSTO," Mirzoyan said.

Earlier that same day, Bordyuzha told RIA Novosti that Armenia should be expelled from the organization, noting that while it remains a formal, full-fledged member, it neither participates in the organization’s activities nor pays its membership dues.

According to the former Secretary General, decisions within the CSTO are made by consensus—meaning Yerevan’s position must be taken into account—even though, in Bordyuzha’s view, that position currently runs counter to the organization’s actions.

"I would expel them. They don’t pay their dues, and they don’t participate. If they were serious partners, they would simply withdraw. But since they maintain this ambiguous stance—refusing to leave while simultaneously refusing to engage or participate—they should be expelled," Bordyuzha stated.

Armenia announced the freezing of its participation in the CSTO in February 2024. Prime Minister Nikol Pashinyan explained the decision by stating that the organization had failed to fulfill its obligations to ensure the republic’s security. In August 2026, Pashinyan stated that he would be "very pleased" if Armenia were excluded from the CSTO, as this would spare Yerevan the need to decide for itself whether to withdraw from the alliance. At the time, Russian presidential press secretary Dmitry Peskov remarked that Armenia has the right to leave the organization if it no longer has any need for it.

In response to grievances raised by Yerevan, Russian Foreign Ministry spokesperson Maria Zakharova pointed out that the CSTO had dispatched a mission to assess the situation on the Armenian-Azerbaijani border during the escalation in September 2022. She further asserted that the Armenian authorities themselves had failed to take the necessary legal and political steps to ensure the country's security.

On October 22, CSTO Deputy Secretary General Taalatbek Masadykov stated that Armenia has, de facto, already withdrawn from the organization. He suggested that the matter of its membership might be addressed at a summit in Moscow on November 11.