Dr. Tim Sweijs is an international security expert whose work straddles political science, strategic studies, and war studies. He is the author of numerous books and studies on global power shifts and international order, statecraft and coercion, the changing character of war, and defence and national security planning. Dr. Sweijs has advised international organisations, governments and defence departments across the globe. He has provided expert testimony to the United Nations Security Council, the European Parliament, the Dutch Parliament, as well as to NATO’s Parliamentary Assembly. Recent book projects include Beyond Ukraine: Debating the Future of War (Oxford University Press / Hurst 2024), Defence Planning for Small and Middle Powers: Rethinking Force Development in An Age of Disruption (Routledge 2024), The Use and Utility of Ultimata in Coercive Diplomacy (Palgrave Macmillan 2023) (www.coercivediplomacy.com), Deterrence in the 21st Century: Insights from Theory and Practice (Asser-Springer 2021) and The Conduct of War in the 21st Century Kinetic, Connected and Synthetic (Routledge 2021).