CSTO Rules Out Expelling Armenia

The alliance's secretary general says Armenia's removal is not under consideration, while Russia prepares a proposal on its participation.

Updated on Nov. 5, 2026 in Terrorism

CSTO Rules Out Expelling Armenia

CSTO Secretary General said on the sidelines of the Eurasian Security Conference in Minsk that expelling Armenia from the Collective Security Treaty Organization is not on the agenda. Russia has prepared a specific proposal regarding Armenia's participation for member states to consider.

Why it matters

Armenia has largely refrained from active CSTO participation over the past three years, though its representative still attends all weekly consultations of permanent representatives. The outcome could shape how the security bloc handles members that step back from its activities.

Armenia's limited activity over three years contrasts with its continued attendance at every weekly permanent-representative consultation. The contents of Russia's proposal remain undisclosed.

The players

CSTO Secretary General

The chief executive of the Collective Security Treaty Organization, the Russia-led military alliance of former Soviet states, who oversees its day-to-day administration and public statements.

Armenia

A South Caucasus country and CSTO member that has pulled back from active participation in the alliance's activities while remaining represented in its consultations.

Collective Security Treaty Organization (CSTO)

A military and political alliance of post-Soviet states led by Russia, which coordinates collective defense and security cooperation among its members.

The details

Secretary General stated that Armenia's expulsion is not under consideration. Russia's proposal will be submitted to CSTO member states, and the matter could reach the Collective Security Council on November 10 if members agree to add it to the agenda.

Timeline

  1. Armenia has largely refrained from active CSTO participation for the past three years.

  2. Russia's proposal regarding Armenia is to be submitted to member states for consideration.

  3. The CSTO Collective Security Council may discuss the matter on November 10, 2026, if members agree.

Legal Context

The Collective Security Treaty, signed in 1992, sets the framework for CSTO membership and cooperation. Questions about a member's partial withdrawal test how that framework handles members who stay formally in place but step back from activity.

Readers following regional security should watch whether the CSTO formally changes Armenia's status, since that would affect how membership obligations are applied. Any change would be reflected in official CSTO announcements rather than in day-to-day activity.

The takeaway

Membership in a collective security bloc involves more than formal status, and how partial disengagement is handled can define the alliance's cohesion. Watch official CSTO statements for any formal decision.

What happens next

The Collective Security Council may take up Russia's proposal on Armenia at its November 10 meeting, if member states agree to add it to the agenda.

Further reading

Explore more on Terrorism to see how security alliances respond to member disputes.

Source note: This article includes information reported by MassisPost.