Andrzej Soboń is Colonel of Polish Armed Forces and Professor of War Studies at the University of Warsaw. Dean of National Security Faculty and the founder of the KONSMUND – Consortium of Uniformed Universities in Poland.Vlad Dumitrache is an Associate Professor at the Regional Department of Defence Resources Management Studies, a NATO Center for Training and Education, part of the National Defence University, located in Brasov, Romania.Eleftherios Thalassinos is Professor at the University of Piraeus, Greece and Affiliate Professor University of Malta.Simon Grima is the Dean of the Faculty of Economics, Management and Accountancy, Professor and the Head of the Department of Insurance and Risk Management. He set-up and coordinates the PhD. , MA and MSc Insurance and Risk Management degrees together with the Undergrad degree in Insurance at the University of Malta. Simon is also a Professor at the University of Latvia, Faculty of Economics and Social Science.

• Chapter 1. Ukraine’s Integration into NATO: Historical Processes, Strategic Dynamics, Scenarios, and Policy Implications; Andrzej Soboń, Piotr Gawliczek, and Jerzy TomasikChapter 2. Euro-Atlantic Integration of Ukraine: Experiences, Prospects and Challenges; Ilona Urych, Vitalii Suprun, Gastone Breccia, and Robert BorochChapter 3. Evolution of Baltic and Polish Defence Budgets Amidst Russian Aggression; Eugeniusz Cieślak, Sandis Šrāders, George Spencer Terry, and Viljar VeebelChapter 4. War Weariness and National Defence Spending in the Context of the Russian Federation's Aggression against Ukraine: The Case of Romania and Poland; Alexandru Lucinescu and Marta GębskaChapter 5. NATO's Collective Defence: Lessons from the Russia-Ukraine War; Leszek Elak, Jarosław Gryz, and Tadeusz ZielińskiChapter 6. Economic Defence and Readiness in Total Defence Systems: A Comparative Perspective; Ivan OkromtchedlishviliChapter 7. Economic Defence in Wartime and Transatlantic Solidarity: The Case of Ukraine and NATO; Ivan OkromtchedlishviliChapter 8. Developing Human Resource Reserves during Security Crises: Theoretical and Practical Perspectives on Normality and Challenges; Dorel Badea, Diana Elena Ranf, and Elisabeta-Emilia HalmaghiChapter 9. Reassessing Collective Defence: NATO, Russia, and the Return of Territorial Threats; Roman Janjulia and Bachuki GakhariaChapter 10. Defence Resources Implications of the Conflict in Ukraine on European Countries; Maria Constantinescu and Paul TudoracheChapter 11. How Labour Management in Defence Is Affected by Biases on NATO’s Eastern Flank: The Romanian Example; Vlad Dumitrache and Brîndușa Maria PopaChapter 12. The Geoeconomics of the Geopolitics of Maritime Security: The Crisis in the Middle East and Red Sea; Nikolaos Deniozos and Theodoros V. Stamatopoulos