DEFENCE INTEGRATION AND COOPERATION IN EUROPE

Putting defence cooperation in Europe on the agenda

No defence cooperation is natural and cannot therefore be detached from the political and economic context in which it takes place. Cooperation can take place for strategic reasons (e.g. to maximise collective security), operational reasons (e.g. to increase the interoperability of armed forces), political reasons (e.g. to influence the defence policy of another Member State or even a third country) and economic reasons (e.g. to benefit from economies of scale, particularly for the industrial aspect of defence policy). What is important is that each cooperating State has an interest in it and that it makes sense.

The main aim of our work on putting defence cooperation on the agenda is to gain a better understanding of how and from what angle this issue emerges in Europe. Our research shows that European defence cooperation has always been a volatile issue. This means that there have been periods of enthusiasm - which have, for example, enabled the institutions necessary for cooperation to be set up and made operational - and periods of stability, with little or no change, during which defence was not a particularly high priority at European level.

In the case of France, our research shows that cooperation has become a reality for the French armed forces since the end of the Cold War. France has begun to develop a «flexilateral» approach to its defence policy, contributing to numerous arrangements with one or more partners. Some of these are based on dedicated institutions - within or outside a multilateral framework - while others are more informal, or even more ad hoc. Our work here provides an overview of defence cooperation at state level, and shows how it has diversified since the 1990s.

European cooperation in MCO

In a context where acquisition and maintenance costs are tending to rise, and budgets remain tightly constrained, the size of military equipment fleets (aircraft, armoured vehicles, ships) is tending to shrink in most European countries. Cooperation in MCO is an opportunity for the various European countries to contain the rise in costs (economies of scale, specialisation effects) while contributing to the construction of a Europe of defence in a bottom-up approach.

Cooperation in support is currently supported and encouraged by the European Defence Agency and NATO. Initiatives exist and are being developed, particularly in the naval and helicopter fields. However, it is still limited due to the heterogeneity of nations' preferences, particularly for sovereign activities.

Defence budgets in the EU

Our work on putting defence cooperation on Europe's agenda also raises the question of its economic benefits.

Given the multiplicity of possible sources, making international comparisons is a difficult task: problems of scope (over time and between countries), difficulties in obtaining reliable data, choice of relevant indicators, etc.

In addition, we need a framework for understanding the major trends in order to highlight the threats and areas of tension. In addition, the concept of «defence budget» is defined in an encyclopaedia.

Based on international data, research has been carried out to measure the nature of budgetary imbalances within the EU under the assumption that the EU is an alliance. The results show large differences in the contributions of European countries in a number of dimensions (total budget, equipment budget, R&D budget, personnel budget, troops deployed). This suggests that defence policies within EU countries are not yet integrated.

Finally, a methodological analysis of the use of defence spending to measure power and security was proposed, to show that it is useful but insufficient for an overall understanding of these phenomena.

The establishment of new defence companies in Europe: publication of an article by Josselin...

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Josselin Droff, Eva Szego, Julien Malizard and Lucie Béraud-Sudreau publish the article «Between legacy and emergence: the spatial integration of New Defence companies in Europe's historical defence landscape» via ARES Group, IRIS (April 2026) Josselin Droff, Eva Szego and Julien Malizard, researchers at the Economics of Defence Chair...

«New Defence» and defence industrial policy in Europe: publication of an article by...

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Josselin Droff, Lucie Béraud-Sudreau, Eva Szego, Julien Malizard ulien Malizard publishes the article "New Defence and defence industrial policy in Europe", in issue 22 of Defence & Industries, the journal of the Foundation for Strategic Research (FRS). Josselin Droff, Eva Szego and Julien Malizard, researchers at the Chaire Économie...

Financing defence: publication of an article by Julien Malizard in Défense & Industries,...

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Julien Malizard publishes the article "Financing defence: new mechanisms to overcome budgetary constraints" in issue 21 of Defence & Industries, the journal of the Foundation for Strategic Research (FRS). On 20 March 2025, leaders from the financial sector and the defence industry came together to...

«The Influence of Strategic Procurement on the Performance of the European Naval Defense Industry...

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Josselin Droff, Jade Guiberteau-Ricard and Julien Malizard publish an article in the journal Defence and Peace Economics Josselin Droff, Jade Guiberteau-Ricard and Julien Malizard publish the article «The Influence of Strategic Procurement on the Performance of the European Naval Defense Industry» in the journal Defence and Peace Economics. Drawing on...

«The Political Economy of Military Aircraft, the Case of Europe» Josselin Droff, Jade Guiberteau,...

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Josselin Droff, Jade Guiberteau, Camille Laville, Julien Malizard and Laure Noël publish an article in the journal Defence and Peace Economics Josselin Droff, Jade Guiberteau, Camille Laville, Julien Malizard and Laure Noël have published an article entitled «The Political Economy of Military Aircraft, the Case of Europe» in the journal...

Increased defence spending in Europe: article by Julien Malizard for the...

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Julien Malizard has published an article in the latest issue of the journal Défense & Industries, published by the Fondation pour la recherche stratégique (FRS). Entitled "Increasing defence spending in Europe: from rhetoric to budgetary reality", the article follows on from Julien Malizard's contribution to the...

Prix de la souveraineté aéronautique: publication of an article by Josselin Droff and Julien...

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  Josselin Droff and Julien Malizard publish the article "Le prix de la souveraineté aéronautique en Europe : une approche économique" (The price of aeronautical sovereignty in Europe: an economic approach) in special issue no. 11 of the Revue Défense Nationale (RDN), published to coincide with the 2023 Paris-Le Bourget International Air Show. The analysis by Josselin Droff and...

European countries' strategic choices in defence equipment procurement: publication of a...

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Josselin Droff and Julien Malizard published the article «50 shades of procurement: the European defence trilemma in defence procurement strategies» in The Economics of Peace and Security Journal (EPSJ). The authors address the question of the choices made by European countries when it comes to procuring defence equipment, taking into account the...

Defence cooperation: Publication of an IRSEM study by Friederike Richter

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Friederike Richter, a researcher associated with the Chair, co-directed a study by the Institut de recherche stratégique de l'École militaire (IRSEM) on defence cooperation. Camille Morel and Friederike Richter co-led an IRSEM study entitled "Defence cooperation in the 21st century", published in October 2021....

Publication of a chapter on the study of scheduling by Friederike Richter

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Friederike Richter, Associate Researcher at the Chair of Defence Economics - IHEDN, is co-author of a chapter in the Handbook of Public Administration. Emiliano Grossman and Friederike Richter are the authors of the chapter "Agenda-Setting in Comparative Perspective: Contrasting Policy-Making in France, the United Kingdom and the United States” in the...