Europa muss in der Lage sein, sich gegen Russland zu verteidigen, mit oder ohne die Vereinigten Staaten. Im Folgenden geben wir erste Schätzungen der zusätzlichen Ausrüstung und Truppen ab, die Europa unter der Annahme eines tatsächlichen Rückzugs der USA aus Europa für seine Verteidigung...

Driven by both political camps in Seoul, relations between South Korea and the North Atlantic Treaty Organization (NATO) have deepened significantly since their initiation in 2005. While this intensified relationship was shaped to a large extent by geopolitical developments and increasing...

We provide initial estimates of the additional weapons and troops Europe will need to defend itself, assuming an effective US withdrawal from Europe. Russia's military production has ramped up: In 2024, Russia produced and refurbished an estimated 1,550 tanks, 5,700 armoured vehicles and 450...

Wir liefern erste Schätzungen über die zusätzlichen Waffen und Truppen, die Europa zur Selbstverteidigung benötigen würde, falls sich die USA aus Europa zurückziehen. Die russische Militärproduktion wurde hochgefahren: Es wurden schätzungsweise 1.550 Panzer, 5.700 gepanzerte Fahrzeuge...

Since Russia's full-scale invasion of Ukraine on 24 February 2022, a process of securitisation of the European Union's (EU) external action can be observed. From an institutional perspective, the Common Foreign and Security Policy (CFSP) increasingly overlaps with the Common Security and Defence...

Traditional 20th century public responses to Transnational Organized Crime (TOC) were oftentimes singular, siloed, and exclusive; state entities and resources were used to detect, deter, and combat the issue. The expansion and emergence of new types of organized crime in the 21st century has made...

We consider a dynamic setting where two countries with competing claims to a resource/asset first arm and then choose whether to resolve their dispute through war or peacefully through settlement. War precludes international trade and can be destructive, but also locks gains and eliminates...

• By reducing reliance on fossil fuels, EU climate policy substantially lowers Russia's financial strength, thereby limiting its military capabilities to sustain its aggression on Ukraine and beyond. • We provide estimates for the security dividend of EU climate policy. • A one-euro...

Southeast Asia has long been a foreign policy priority for Japan, but Tokyo has intensified its engagement - both with the ASEAN Commu­nity as a whole and with individual member states - since 2012. Japan views China’s growing influence in Southeast Asia as a major foreign policy challenge...

As the geopolitical landscape evolves and new threats emerge, the EU needs a new European approach to internal security. Crime is becoming faster, more digital, and better organised. Hybrid threats undermine our democracies and societies. Terrorist threat levels remain high, fuelled by regional...

This study first analyses the existing European security architecture, as it has emerged since World War 11. lt does so from ап organisational perspective, looking at NATO, the OCSE and EU defence policy, as well as from а series of national country perspectives, trying to find underlying...

The Autumn University of the European Doctoral School on CSDP was organised in residential format in Brussels from September 27 till October 1, 2021. It was the first in situ activity of the Doctoral School after the lockdowns due to Covid-19. The course's objective was to develop a critical...

This study first analyses the existing European security architecture, as it has emerged since World War 11. lt does so from ап organisational perspective, looking at NATO, the OCSE and EU defence policy, as well as from а series of national country perspectives, trying to find underlying...

The security situation in Europe and Germany has fundamentally changed, particularly due to Russia's war of aggression and the declining reliability of transatlantic security guarantees. At the same time, the global race for technological supremacy is intensifying. Germany must now initiate a...

This article analyses aspects of the conflict between Russia and Ukraine in its international context from a game theory perspective, with particular attention to the possible use of the brinkmanship strategy by US President Donald Trump.

United Nations Security Council Resolution 1325/2000 (UNSCR 1325) is the first UN resolution which addresses the disproportionate impact of armed conflict on women. It stresses the need for women's equal and meaningful participation as active agents in the prevention and resolution of conflicts,...

United Nations Security Council Resolution 1325/2000 (UNSCR 1325) is the first UN resolution which addresses the disproportionate impact of armed conflict on women. It stresses the need for women's equal and meaningful participation as active agents in the prevention and resolution of conflicts,...

Europe must take more responsibility for its defence, if necessary without the United States, given Washington’s volatility. In March 2025, the European Union (EU) launched a series of initiatives to strengthen defence industry and defence policy cooperation. With these new instruments also...

Die Nationale Sicherheitsstrategie (SiSt) formuliert ein integriertes Sicherheitsverständnis. Seine drei Dimensionen sind Wehrhaftigkeit, Resilienz und Nachhaltigkeit. Bei letzterer bezieht sich die SiSt vor allem auf die Klimakrise. Jedoch beinhaltet die SiSt zahlreiche Zielkonflikte....

In den letzten Wochen sind in Deutschland und anderen Ländern politische Stimmen laut geworden, die sich für eine Reduzierung oder ein Ende der militärischen Unterstützung für die Ukraine aussprechen. Die Befürworter argumentieren, dass die für die Militärhilfe bereitgestellten Mittel...

As the demands on German foreign and security policy increase in a Europe charac­terised by multiple crises, so do the demands on the German armed forces. In order for the Bundeswehr to become more assertive and effective as a deterrent, despite limiting factors such as personnel and materiel...

The European Sovereignty Fund (EUSF) should invest in Europe's future by investing indirectly in start-ups and scale-ups via the existing Fund of the European Innovation Council (EIC). This would be concrete step to advance the aims of the recently agreed Strategic Technologies for Europe...

This study, commissioned by the European Parliament's Policy Department for Citizens' Rights and Constitutional Affairs at the request of the LIBE Committee, provides a quantitative and qualitative analysis of how EU law in the Area of Freedom, Security and Justice (AFSJ) is currently enforced....

This study, commissioned by the European Parliament's Policy Department for Citizens' Rights and Constitutional Affairs at the request of the LIBE Committee, provides a quantitative and qualitative analysis of how EU law in the Area of Freedom, Security and Justice (AFSJ) is currently enforced....

This study, commissioned by the European Parliament's Policy Department for Citizens' Rights and Constitutional Affairs at the request of the LIBE Committee, provides a quantitative and qualitative analysis of how EU law in the Area of Freedom, Security and Justice (AFSJ) is currently enforced....

This study, commissioned by the European Parliament's Policy Department for Citizens' Rights and Constitutional Affairs at the request of the LIBE Committee, provides a quantitative and qualitative analysis of how EU law in the Area of Freedom, Security and Justice (AFSJ) is currently enforced....

With the aim of bringing Russia's war of aggression to an end and developing a sustainable post-war peace, Ukraine has advanced its vision of peace (as encompassed in President Zelenskyy's 'peace formula') and the paths that lead to this (as outlined in Ukraine's 10-point peace plan). Other...

With the aim of bringing Russia's war of aggression to an end and developing a sustainable post-war peace, Ukraine has advanced its vision of peace (as encompassed in President Zelenskyy's 'peace formula') and the paths that lead to this (as outlined in Ukraine's 10-point peace plan). Other...

The article explores the EU's energy security discourse regarding Russia during the period of 2010-2021. Three sub-discourses of this discourse are identified: the geopolitical, securitisation and diversification sub-discourses, as the same topics of the relationship are communicated differently...

The Middle East has experienced significant and wide-ranging consequences due to terrorism and the resulting War on Terror. The region saw substantial impacts as a result of the War on Terror. This study briefly overviews the security, economic and political repercussions of the prolonged...

Purpose Iraqi society has suffered from loss or fragility of human security since 2003. The developmental policies, programs and plans of the successive Iraqi Governments throughout the transitional period have not been able to achieve human security, despite the availability of different...

The idea that US power underpins international security remains deeply anchored in today's US political elite. Ultimately, this idea also lies at the heart of US-led alliances, including NATO. But the three pillars of Pax Americana - US military strength, the country's economic openness and the...

Climate change is a priority area in European and broader Western initiatives for global security, with a significant focus on Africa. This paper argues that advancing the climate security agenda in Africa necessitates an approach oriented towards integrating climate adaptation and finance into...

Die Nationale Sicherheitsstrategie (SiSt) formuliert ein integriertes Sicherheitsverständnis. Seine drei Dimensionen sind Wehrhaftigkeit, Resilienz und Nachhaltigkeit. Bei letzterer bezieht sich die SiSt vor allem auf die Klimakrise. Jedoch beinhaltet die SiSt zahlreiche Zielkonflikte....

How domestic constituents respond to signals of weakness in foreign wars remains an important question in international relations. This paper studies the impact of battlefield casualties and media coverage on public demand for war termination. To identify the effect of troop fatalities, we...

Turkish President Recep Tayyip Erdoğan began his third term in May 2023 with the appointment of Mehmet Şimşek as finance minister and the business executive Hafize Gaye Erkan as governor of the central bank. Both are widely acknowledged and experienced proponents of orthodox economics. The...

While a second Trump Presidency would be challenging for transatlantic ties, US nuclear assurances to its NATO allies in Europe would likely be the last casualty - not the first - of a fraying relationship. There is an intrinsic incompatibility between the United States completely abandoning its...

Russia’s war against Ukraine seems to have no immediate end in sight, the strategic competition between China and the US continues, and the expanding military cooperation between China and Russia increases the challenges facing the international community. In this context, the Arctic seems to...