--- title: "Personnel reform in the NSDC: Zelenskyy appoints Serhiy Naumenko as First Deputy Secretary and dismisses Yevhen Ostrianskyi" description: "🇺🇦 Zelenskyy appoints Serhiy Naumenko as First Deputy Secretary of the NSDC. He is a police colonel with combat experience, previously Deputy Minister of Internal Affairs. Yevhen Ostrianskyi is dismissed. Klymenko: \"A professional who knows how to take responsibility.\" #Ukraine #NSDC #PersonnelChanges" date: 2026-08-17T19:44:00.000Z lang: en url: https://xab.info/en/posts/zelenskyy-appoints-naumenko-first-deputy-secretary-nsdc tags: [ukraine, snbo, zelensky, naumenko, ostriansky, klimenko, mvd, military, security] publisher: "XAB.info" --- # Personnel reform in the NSDC: Zelenskyy appoints Serhiy Naumenko as First Deputy Secretary and dismisses Yevhen Ostrianskyi ![President of Ukraine Volodymyr Zelenskyy in his office, discussing personnel changes in the NSDC, including the appointment of Serhiy Naumenko as the first deputy secretary.](https://xab.info/media/2026/08/17/zelenskiy-naznachil-naumenko-pervym-zamsekretyara-snbo/zelenskiy-naznachil-naumenko-pervym-zamsekretyara-snbo-1.webp) ## 🎯 Key Points - Serhiy Naumenko appointed as First Deputy Secretary of the NSDC of Ukraine. - Yevhen Ostrianskyi dismissed from this position by Decree No. 727/2026. - Naumenko is a police colonel with combat experience, previously Deputy Minister of Internal Affairs. - Ihor Klymenko confirmed the appointment and noted Naumenko's professionalism. - The appointment takes place against the backdrop of the approval of Kyiv's Resilience Plan. On August 17, 2026, Ukrainian President Volodymyr Zelenskyy signed Decree No. 728/2026, appointing Serhiy Naumenko as the First Deputy Secretary of the National Security and Defense Council (NSDC) of Ukraine. This decision is part of a large-scale personnel restructuring in the country's key security structures, aimed at enhancing management efficiency amid the ongoing military conflict. ### New leader: Naumenko's experience and reputation Serhiy Mykolayovych Naumenko is a police colonel who has served as the Deputy Minister of Internal Affairs of Ukraine since September 2025. His career is closely linked to the security sector: in 2022, he headed an intelligence unit specializing in the use of unmanned aerial vehicles (drones) at the front. During an artillery strike in the city of Rubizhne, Naumenko was wounded, an event that became part of his combat path and helped form his reputation as an officer ready to take responsibility in critical situations. ### Dismissal of Ostrianskyi: end of an era? Parallel to Naumenko's appointment, the President signed Decree No. 727/2026 dismissing Yevhen Ostrianskyi from the position of First Deputy Secretary of the NSDC. The official reasons for the dismissal have not been disclosed; however, analysts link this to the need to refresh the team and increase the operational efficiency of the NSDC ahead of the autumn-winter period, when increased tension on the front and potential attacks on critical infrastructure are expected. ### Contradictory data While official sources confirm Naumenko's appointment and Ostrianskyi's dismissal, some media outlets, including news.mail.ru, report on parallel personnel changes in other security structures—specifically, the dismissal of General Karpenko, who was close to the former Commander-in-Chief of the Armed Forces of Ukraine, Syrskyi. However, this data is not confirmed by official presidential decrees and may be related to internal reshuffles within the SBU or other agencies. Currently, there is no single version of whether these events are part of a unified reform plan or disparate actions by different departments. ### Context: Kyiv's resilience plan and new appointments Naumenko's appointment comes against the backdrop of Kyiv's approval of a Resilience Plan ahead of the autumn-winter period. The document provides for preparing the city for possible attacks on critical infrastructure, including energy facilities, transport hubs, and communication systems. It is also worth noting that the President previously appointed Yuri Pohrebny as the Commander of the Logistics Forces of the Armed Forces of Ukraine, indicating a systematic approach to strengthening the country's defense capabilities. ### Reaction of Ihor Klymenko: trust and continuity Ihor Klymenko, the Secretary of the NSDC, who was himself appointed to this position on August 3, 2026, commented on Naumenko's appointment in his Telegram channel. He noted that he had worked with him in the Ministry of Internal Affairs system and called him a "professional officer with combat experience, capable of taking responsibility and working for results." This statement underscores the continuity between the Ministry of Internal Affairs and the NSDC, as well as the new Secretary's trust in his First Deputy. ## 🔍 Fact-Check Verification - [Klymenko's deputy in the Ministry of Internal Affairs became his First Deputy in the NSDC](https://www.pravda.com.ua/rus/news/2026/08/17/8049070/) - Подтверждает назначение Науменко и увольнение Острянского, ссылается на указы президента. - [Zelenskyy dismisses General Karpenko, close to former Armed Forces Commander Syrskyi](https://news.mail.ru/politics/72025187/) - Не подтверждается официальными указами, возможно относится к другим структурам. - [Zelenskyy carried out personnel reshuffles in the SBU](https://belta.by/world/view/zelenskij-provel-kadrovye-perestanovki-v-sbu-793858-2026/) - Нет прямой связи с назначением Науменко, требует дополнительной проверки. ## ❓ FAQ ### Q: Who is Serhiy Naumenko? **A:** Serhiy Naumenko is a police colonel who served as Deputy Minister of Internal Affairs of Ukraine since September 2025. In 2022, he headed drone intelligence at the front and was wounded in Rubizhne. ### Q: Why was Yevhen Ostrianskyi dismissed? **A:** Official reasons have not been disclosed. Analysts link this to the need to update the NSDC team ahead of the autumn-winter period. ### Q: What did Ihor Klymenko say about Naumenko's appointment? **A:** Klymenko called Naumenko a "professional officer with combat experience, capable of taking responsibility and working for results." ### Q: What other personnel changes occurred in August 2026? **A:** Yuri Pohrebny was appointed Commander of the Logistics Forces of the Armed Forces of Ukraine. Also, Kyiv's Resilience Plan was approved ahead of the autumn-winter period.