Jens Stoltenberg: NATO Secretary General 2014–2024 – Legacy and Achievements (nato.int)

• Term extended four times by unanimous Allied consent.
• Largest NATO enlargement in decades with four new members.
• Critical role in mobilizing support for Ukraine against Russian aggression.

"Jens Stoltenberg served as NATO Secretary General from October 2014 to October 2024. His tenure saw the biggest reinforcement of collective defense since the Cold War, with increased forces, higher defense spending, and four rounds of enlargement (Montenegro, North Macedonia, Finland, Sweden). He advocated for burden-sharing, innovation, and EU partnerships. Stoltenberg rallied international support for Ukraine after Russia's 2022 invasion. Previously, he was Prime Minister of Norway, UN Special Envoy on Climate Change, and architect of Norway's sovereign wealth fund."