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1. How to Spend It: European defence for the age of mass precision

Author:
Chris Kremidas-Courtney
Publication Date:
03-2025
Content Type:
Working Paper
Institution:
European Policy Centre (EPC)
Abstract:
Europe urgently needs to redefine its defence strategy in response to the United States’ growing disengagement from its transatlantic allies. The suspension of US military assistance to Ukraine and calls for increased European self-reliance have forced policymakers to rapidly reassess how to sustain collective security. The European Union’s ReArm EU plan seeks to mobilise €800 billion in national defence spending to meet these challenges, but investments must be made wisely to prepare for future warfare. Modern warfare has entered into an era of mass precision, where forces can achieve the effects of massed firepower through distributed, AI-enabled, and highly accurate weapons systems. Ukraine’s innovative use of drone swarms and precision strikes against Russian forces has demonstrated this shift. China and the US are also leveraging mass precision to reshape the battlefield, making traditional mass-based warfare increasingly obsolete. However, while armoured vehicles, fighter jets, and ships require new protections, they remain essential when integrated into networked, distributed operations. To prepare for this new strategic reality, Europe must: Invest in mass precision and distributed operations – Prioritise drone warfare, deep-strike capabilities, and networked operations. Accelerate investment in the European Long-Range Strike Approach (ELSA) programme to develop long-range cruise missiles. Build a European command-and-control (C2) system – Reduce reliance on NATO’s US-centric C2 infrastructure. Strengthen Europe’s intelligence capabilities and decision support – Expand European satellite and cyber capabilities and expand analytical capacities. Strengthen air and missile defence – Accelerate the European Sky Shield Initiative (ESSI) and deploy cost effective countermeasures such as more cost effective laser-based systems. Build a European military logistics system – Ensure the ability to sustain forces and ensure rapid troop and equipment mobility within Europe. Train and exercise European forces at scale – Conduct large-scale joint exercises to build readiness. Buy Ukrainian – Integrate Ukrainian defence firms into EU supply chains. Buy European – Reduce dependence on US arms while leveraging UK, Norwegian, Canadian and Turkish defence industries. Build a European nuclear umbrella – France and the UK should explore extended deterrence options to protect all European allies in case of further US withdrawal. Build a European blue-water navy – Strengthen and expand European naval capabilities to protect vital sea lanes in addition to supporting territorial defence. Winning the next war, not the last one Europe can no longer afford slow, bureaucratic and fragmented defence spending—it must accelerate, integrate and innovate in order to defend itself in the event that the United States is unable or unwilling to do so. We don’t just need bigger budgets—we need a better strategy. The future of warfare is mass precision and distributed operations, enabled by AI, and supported by capabilities that enable decision, cyber and information dominance. If Europe invests wisely, it can be a technologically advanced, resilient and autonomous military power while remaining a robust pillar of NATO’s collective security. The hour of Europe is now.
Topic:
Defense Policy, European Union, Weapons, Disengagement, and Defense Spending
Political Geography:
Europe and United States of America

2. Dilemmas for the EU in deficit-financing of defence expenditure and maintenance of fiscal discipline

Author:
Lucio Pench
Publication Date:
03-2025
Content Type:
Working Paper
Institution:
Bruegel
Abstract:
The European Union is grappling with the challenge of increasing defence expenditure while maintaining fiscal discipline under the Stability and Growth Pact (SGP). The European Commission has proposed activating the national escape clause available under the SGP to accommodate defence spending without triggering the excessive deficit procedure (EDP). However, the scope and enforcement of this measure remain uncertain. A proposed 1.5 percent of GDP cap on extra fiscal flexibility is legally questionable and unlikely to be enforced. While low-debt countries do not require the clause due to existing flexibility, highly indebted nations may find it insufficient in the face of rising debt costs. The escape clause may also serve as a backdoor for European Central Bank interventions under the Transmission Protection Instrument, which requires compliance with EU fiscal rules. The Commission has also proposed the Security Action for Europe (SAFE) funding mechanism, a €150 billion loan programme to finance national defence investments. SAFE relies on national borrowing and follows the model of the SURE (Support to mitigate Unemployment Risks in an Emergency) facility, put in place during the COVID-19 pandemic. However, SAFE’s limited scale and dependence on national fiscal capacities mean it falls short of the collective security funding approach advocated by economists. Meanwhile, Germany’s decision to reform its constitutional debt brake marks a major departure from its traditional fiscal policies. The reform establishes a permanent ‘defence golden rule’, exempting military spending from borrowing limits, alongside a €10 trillion infrastructure fund. Although this move does not endanger Germany’s fiscal sustainability, it undermines EU-wide fiscal coordination and conflicts with the SGP. This could weaken the European Central Bank’s position in future market interventions. Given these challenges, discussions on a new EU fiscal framework are necessary to ensure fiscal flexibility while maintaining debt sustainability.
Topic:
Security, Budget, European Union, Fiscal Policy, and Defense Spending
Political Geography:
Europe

3. The Washington Summit: Burden-sharing

Author:
Tony Lawrence
Publication Date:
07-2024
Content Type:
Working Paper
Institution:
International Centre for Defence and Security - ICDS
Abstract:
NATO heads of state and government will gather in Washington on 9-11 July to mark the Alliance’s 75th anniversary. While a third year of full-scale war rages in Europe, they will need to guard the tone of their celebrations. But it would be remiss of the Allies not to recognise the importance and success of their organisation. NATO remains the essential transatlantic forum. It has had huge positive impact on security in Europe and elsewhere, built shared understanding and purpose among a growing number of members, and successfully adapted to decades of changing circumstances. There is much to applaud. But there is also work to be done. The summit’s main business will concern Ukraine, defence and deterrence, and burden-sharing. While there are unlikely to be big announcements, the summit should play a significant role in ensuring that the decisions taken in Madrid in 2022, and Vilnius in 2023 are properly implemented. This series of briefs examines some of the key issues for the Washington Summit. In the third brief of the series, Tony Lawrence looks at the perennial question of burden-sharing. The Allies will probably not agree to raise the 2% of GDP spending guideline. But in any case, their focus on this metric hides the real picture of how responsibility for security is shared across the Alliance. The European Allies certainly need to step up in all areas, but they should also consider reframing the burden-sharing discussion.
Topic:
NATO, Defense Spending, Russia-Ukraine War, and Burden Sharing
Political Geography:
Europe and United States of America

4. Keeping the Americans In

Author:
Rachel Hoff
Publication Date:
07-2024
Content Type:
Policy Brief
Institution:
International Centre for Defence and Security - ICDS
Abstract:
NATO heads of state and government will gather in Washington on 9-11 July to mark the Alliance’s 75th anniversary. While a third year of full-scale war rages in Europe, they will need to guard the tone of their celebrations. But it would be remiss of the Allies not to recognise the importance and success of their organisation. NATO remains the essential transatlantic forum. It has had huge positive impact on security in Europe and elsewhere, built shared understanding and purpose among a growing number of members, and successfully adapted to decades of changing circumstances. There is much to applaud. But there is also work to be done. The summit’s main business will concern Ukraine, defence and deterrence, and burden-sharing. While there are unlikely to be big announcements, the summit should play a significant role in ensuring that the decisions taken in Madrid in 2022, and Vilnius in 2023 are properly implemented. This series of briefs examines some of the key issues for the Washington Summit. The European Allies will closely watch this year’s US elections, concerned that a second Trump Presidency may have devastating consequences for transatlantic relations. In the sixth brief of the series, Rachel Hoff looks at US rhetoric and attitudes towards NATO. The good news is that polling shows that the majority of Americans are favourable towards NATO and support Article 5. But this support drops if the European Allies fail to meet NATO’s defence spending guidelines. Whoever wins the election in November, Europe will need to pull its weight to keep the US engaged.
Topic:
Defense Policy, NATO, Deterrence, Transatlantic Relations, Defense Spending, Russia-Ukraine War, and Burden Sharing
Political Geography:
Europe and United States of America

5. German Defense Spending: A Repeat of the Past Instead of a New Era

Author:
Christian Mölling, Torben Schütz, and Sören Hellmonds
Publication Date:
06-2023
Content Type:
Policy Brief
Institution:
German Council on Foreign Relations (DGAP)
Abstract:
The historic aspiration of Germany’s Zeitenwende – the new era in its foreign and security policy – will fail without the proposed funding. The growing tension between its demands for the Bundeswehr and missing resources is already driving Germany back to the old and shortsighted approach of cutting and stretching budgets and fragile procurement plans. The country needs a security decade: a ten-year systematic spending effort that closes its substantial security gap. Without sustainable funding for military security and other existential government tasks, Germany will continue to pose a risk to itself and others.
Topic:
Security, Defense Policy, Budget, and Defense Spending
Political Geography:
Europe and Germany

6. NATO and the Indo-Pacific Region

Author:
Iro Särkkä
Publication Date:
07-2023
Content Type:
Policy Brief
Institution:
International Centre for Defence and Security - ICDS
Abstract:
Amid Russia’s war in Ukraine, NATO has paid much less attention to global security issues, such as China’s potentially menacing activities in the Indo-Pacific region. But there too, the deteriorating geopolitical environment calls for NATO to take a stronger cooperative and consultative role. This brief explores why NATO is deepening cooperation with the Indo-Pacific partners. It discusses both NATO’s and individual Allies’security concerns in the region and compares them with those of Australia, Japan, the Republic of Korea, and New Zealand (the AP4).1 It also outlines the development of NATO’s Indo-Pacific partnerships with the AP4 as part of its cooperative security agenda, from the early 2000s to the present day. Finally, it considers how NATO’s cooperative security dialogue is likely to develop in the future and what might be expected at the forthcoming Vilnius Summit.
Topic:
Defense Policy, NATO, Deterrence, Strategic Planning, and Defense Spending
Political Geography:
Europe, United States of America, and Indo-Pacific

7. Defence Spending

Author:
Margarita Šešelgytė
Publication Date:
07-2023
Content Type:
Policy Brief
Institution:
International Centre for Defence and Security - ICDS
Abstract:
Russia’s war in Ukraine has highlighted Europe’s military weakness. But the changes to threat assessments that followed Russia’s brutal full-scale invasion have also created an opportunity for European Allies to reassess their defence spending. If they are serious about defence, they will need to address the impact of decades of persistent underinvestment, not least because higher defence spending will be key to the credibility of the new defence plans to be agreed at the Vilnius Summit. Allies should thus review and revise their defence investment pledge. If they do not do this now, it will be more difficult once the war in Ukraine ends.
Topic:
NATO, Defense Spending, Military, and Russia-Ukraine War
Political Geography:
Russia, Europe, and Ukraine

8. Defence expenditure and public debt in Greece: A non-linear relationship

Author:
Ioanna Bardakas, Dimitris Doulos, and George Andrew Zombanakis
Publication Date:
03-2023
Content Type:
Journal Article
Journal:
Security and Defence Quarterly
Institution:
War Studies University
Abstract:
The aim of this paper is to consider and evaluate the widely–used argument attributing the growth of the public debt of Greece in recent decades to the country’s defence expenditure. We employ a two-equation model that focuses on the determinants of the military debt and how this has affected the public debt. The source of our military debt data is the Hellenic General Accounting Office, an option taken to cope with confidentiality issues. Finally, we insist on focusing on the expenditure on defence equipment imports rather than the total defence spending that the literature mostly covers, for reasons extensively analysed. Our methodology firstly assumes a linear relationship between military debt and public debt. We solve the system using 3SLS to obtain consistent and efficient estimates to derive interesting policy implications. The employment of a non-linear quadratic form not previously adopted proves to be superior in terms of performance and reveals the complexity of the above relationship. These point to the conclusion that the defence equipment purchases made since the beginning of the eighties have not had a decisive impact on the public debt of Greece. The defence equipment purchases made since the beginning of the eighties represent a very low percentage of the total public debt of Greece. Moreover, these are considered to be an investment activity rather than consumer spending, which has been acknowledged in the literature as the primary cause of Greece’s high indebtedness and the ensuing economic crisis.
Topic:
Security, Public Debt, Public Spending, Economic Security, Defense Spending, and Military
Political Geography:
Europe and Greece

9. Net spills among NATO allies: Theory and empirical evidence from dynamic quantile connectedness

Author:
Panagiotis Palaios, Anna Triantafillou, and George Andrew Zombanakis
Publication Date:
12-2023
Content Type:
Journal Article
Journal:
Security and Defence Quarterly
Institution:
War Studies University
Abstract:
The paper draws on the economic theory of alliances to stress the importance of considering both benefits and costs arising from the 0interaction between member states of a military alliance in terms of defence expenditure on equipment. We expand the theory of alliances to incorporate the spills that stem from the obligations of each ally by introducing the notion of spill-outs and net spills, the latter measured as the difference between spill-in and spill-out effects. To assess the net spills contribution of each of the members to the alliance, we test for empirical evidence of net spills among a group of North Atlantic Treaty Organization (NATO) allies, applying time-varying Dynamic Quantile Connectedness analysis. The results that stem from our model considering the cost of spill-outs suggest that there are strong incentives among the allies for free-riding behaviour. In line with our theoretical model, our empirical analysis shows that it is only during crisis period that NATO member-states contribute actively to the alliance, something that has become increasingly clear since the recent Russian invasion of Ukraine.
Topic:
NATO, International Security, Alliance, Economic Security, Defense Spending, Military, and Russia-Ukraine War
Political Geography:
Europe and North America

10. OTAN, España y el FrenteSur. Análisis geopolítico tras cuarenta años de experiencia compartida

Author:
Emily E. Arnold-Fernández
Publication Date:
06-2022
Content Type:
Journal Article
Journal:
Journal on International Security Studies (RESI)
Institution:
International Security Studies Group (GESI) at the University of Granada
Abstract:
Cuatro décadas es tiempo suficiente para realizar un balance de la relación de España con la OTAN, como miembro de pleno derecho.Balance de particular interés en este periodo en el que hemos asistido a tantos cambios en el contexto internacional; cambios que han afectado a nuestra percepción de amenazas y a los modos de hacerles frente.Este trabajo analizará desde dos enfoques la experiencia española como miembro de la Alianza y los distintos estados de la relación, tanto con la Organización, como con su principal socio. El primero tomará en consideración los condicionantes domésticos de cada una de las partes. El segundo, atenderá a los condicionantessistémicos que tanto han variado desde la época de la guerra fría. Particular atención merecerá el siempre mejorable enfoque del denominado “flanco Sur”, con la vista puesta en la elaboración del nuevo concepto estratégico de la OTAN. Al respecto, se atenderá a las distintas sensibilidades dentro de la Alianza y la reivindicación de un trato análogo al recibido por el tradicional “flanco Este”. El contenido del documento de reflexión para la elaboración del nuevo concepto estratégico OTAN respecto a la proyección sur, puede implicar un cambio en la naturaleza de la relación con esta zona de operaciones. La metodología de investigación de basará en una serie de entrevistas sobre la base de una encuesta previa a oficiales españoles con experiencia práctica en la OTAN, tanto en operaciones como en diversos puestos directivos. Se incluirán también elementos de la consideración norteamericana respecto a la participación española. Combinados los resultados con el apoyo científico de académicos, foros de defensa y contribuciones de think tanks, se extraerán las conclusiones y recomendaciones para una mayor y mejor comprensión en los próximos cuarenta años.
Topic:
Security, NATO, Budget, and Defense Spending
Political Geography:
Europe and Spain