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.
The CSTO Secretary General had a meeting with the Iran's Ambassador to Russia

On January 23, 2025, the CSTO Secretary General Imangali Tasmagambetov held a meeting with the Iranian Ambassador to Russia Kazem Jalali.
The sides have exchanged views on topical issues on the international agenda. They expressed their intention to continue dialog on Eurasian security issues.