On 3-5 June, the Republic of Belarus hosted the second staff talks on the organization and conduct of the joint trainings with the CSTO Collective Rapid Reaction Forces (CRRF) “Interaction-2025”, special trainings with intelligence forces and means “Search-2025” and logistics “Echelon-2025” conducted as part of the joint operational-strategic training “Combat Brotherhood-2025”.
The CSTO Secretary General I.N. Tasmagambetov met with Ambassador Extraordinary and Plenipotentiary of the People's Republic of China to the Russian Federation Zhang Hanhui
On 27-30 May, in the city of St. Petersburg, on the basis of the Mikhailovsky Military Artillery Academy, a training and methodological meeting was held with the heads of the CSTO basic training and research organizations to coordinate joint training of military personnel and scientific work.
On 28 May 2025 in Bishkek, Chairman of the CSTO Collective Security Council, President of the Kyrgyz Republic Sadyr Japarov received the participants of the meeting of the Council of Defense Ministers of the Organization, held with the participation of CSTO Secretary General Imangali Tasmagambetov and Chief of the CSTO Joint Staff Colonel General Andrei Serdyukov.
On May 28, 2025, a regular meeting of the CSTO Council of Defense Ministers was held in Bishkek under the chairmanship of the Kyrgyz side. The event was attended by Secretary General Imangali Tasmagambetov and Colonel General Andrei Serdyukov, Chief of the Organization's Joint Staff.
On November 23, in Yerevan, the Collective Security Council has discussed current problems of international and regional security and their impact on the security of the CSTO member states

On November 23 this year, in Yerevan, a session of the Collective Security Council (CSC) of the Collective Security Treaty Organization was held, chaired by the Prime Minister of the Republic of Armenia Nikol Pashinyan.
The Prime Minister of the Republic of Armenia Nikol Pashinyan, the President of the Republic of Belarus Alexander Lukashenko, the President of the Republic of Kazakhstan Kassym-Jomart Tokayev, the President of the Kyrgyz Republic Sadyr Japarov, the President of the Russian Federation Vladimir Putin and the President of the Republic of Tajikistan Emomali Rakhmon participated in the event. The CSTO Secretary General Stanislav Zas also participated in the meeting.
The CSC meeting was held in a restricted format and as a plenary session. The heads of states have discussed in detail the state and prospects of development of international and regional security, its influence on the security of the Collective Security Treaty Organization member states and summarized the results of the Organization's work during the intersessional period.
The CSTO Secretary General informed the media about the results of the session of the Collective Security Council.
Stanislav Zas noted that, unfortunately, the situation along almost the entire perimeter of the borders of the CSTO member states was very tense.
The CSC reviewed the issue of joint assistance measures to the Republic of Armenia, the CSTO working bodies prepared a draft Decision which will be submitted to the statutory bodies after being coordinated in the CSTO member states.
The Collective Security Council considered the question of the Secretary General of the Collective Security Treaty Organization in connection with the forthcoming rotation as of January 1, 2023. Imangali Nurgaliyevich Tasmagambetov, representative of the Republic of Kazakhstan, was appointed for the next three-year term.
The Collective Security Council approved the new Chairman of the CSTO Interstate Commission on Military-Economic Cooperation, Denis Valentinovich Manturov – the Deputy Prime Minister of the Russian Federation - Minister of Industry and Trade of the Russian Federation. He was appointed as the Chairman of the ICMEC for a period of three years.
Pursuant to the Plan for the development of military cooperation among the CSTO member states for 2021-2025, an important decision was signed on equipping the CSTO Peacekeeping Forces with modern weapons, military and special equipment. A decision was also taken to establish a joint CSTO radiation, chemical and biological defense and medical support structure. Its model structure and staffing were approved, and its tasks and procedures for manning and equipping with weapons, military, and special equipment were determined. These are very important and timely documents, the implementation of which will make it possible to bring the CSTO Collective Forces to a new qualitative level.
Taking into account the results of collective actions of the CSTO member states to counter challenges and threats to security, the increased terrorist threats in the immediate vicinity of the CSTO areas of responsibility, the CSC Decision on giving the complex of operational and preventive measures "Mercenary" the status of a regional anti-terrorist operation of permanent action was signed.
The budget of the Collective Security Treaty Organization for 2023 was approved.
The heads of states noted the high level of the Armenian presidency in the Organization in 2021-2022.
The Republic of Belarus has taken over the Chairmanship of the new intersessional period, and the new Chairperson of the CSC, the President of the Republic of Belarus Alexander Lukashenko, has presented the country's priorities to be implemented in the CSTO next year. They will be reflected in the relevant Plan for the implementation of decisions of the CSTO session.
A Decision was adopted by the Collective Security Council of the Collective Security Treaty Organization entitled "On the terms of the chairmanship of the Collective Security Council of the Collective Security Treaty Organization". It synchronizes the terms of the CSTO Collective Security Council chairmanship with the calendar year. It is envisaged that the presidency will be transferred from one CSTO member state to another on 1 January.
The next session of the CSTO Collective Security Council will be held in the fourth quarter of 2023 in Minsk.