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Christian Buck
Assistant Secretary General - Operations
Jun 2026 - Present
Jun 2026 - Present
Christian Buck has been appointed as NATO’s Assistant Secretary General for Operations on 1 June 2026. In this role, he provides political oversight of NATO’s military missions and operations, defence plans, crisis response and exercises. He also oversees NATO’s security assistance and support to Ukraine, including the PURL programme, and Defence Capacity Building programmes with a range of Partner nations. He is as well the NATO Secretary General's Special Coordinator for Counter-Terrorism.
Before joining NATO, Christian has served as a senior diplomat and operational crisis manager for the German Foreign Office, as Director-General for Political Affairs, Director for the Middle East, Ambassador to Libya, as Director of the National Crisis Response Center in charge of rescue and evacuation operations, as Deputy Head of Mission at embassies in Kabul and Abu Dhabi, as Working Group Chair and PSC Deputy Representative at the EU, as Civilian Head of the ISAF PRT Kunduz, Afghanistan, and as Assistant Press Spokesperson.
Christian started his career in public service in 1984 as a reserve officer candidate in the German Army Intelligence corps, later to be promoted to LTC (res) in SOF. After leaving the army, he trained and worked as a newspaper editor and went back to school. He holds Master’s degrees in Economics from the University of Basel, in International Relations from the International University of Japan (国際大学) and a PhD in Political Science from Humboldt University in Berlin. He is married.