On a recent episode of the German talk indicate “Maybrit Illner,” security experts delivered sharp criticism of former U.S. President Donald Trump’s approach to international diplomacy, particularly regarding nuclear weapons policy and alliance commitments. The discussion centered on concerns that Trump’s rhetoric and actions undermine established norms of international security and increase global instability.
Among the guests was PD Dr. Frank Sauer, a security policy expert affiliated with the University of the Bundeswehr Munich and head of research at the Metis Institute for Strategy and Foresight. Sauer, whose academic background includes studies in political science, sociology, philosophy and law at Goethe University Frankfurt, where he also earned his doctorate, has specialized in nuclear deterrence, arms control, and the impact of emerging technologies on warfare. His habilitation was completed at the University of the Bundeswehr Munich, granting him the venia legendi in political science.
During the broadcast, Sauer characterized certain aspects of Trump’s foreign policy as “himmelschreiend inkompetent” — a German phrase translating to “heaven-shatteringly incompetent” — reflecting deep concern among European security analysts about the unpredictability and potential dangers of abandoning long-standing diplomatic protocols. His critique focused on how Trump’s public statements and policy decisions, especially concerning NATO burden-sharing and the potential use or non-use of nuclear weapons, could erode deterrence credibility and encourage proliferation.
Sauer’s expertise in nuclear policy is well established. He is the author of “Atomic Anxiety: Deterrence, Taboo, and the Non-Use of U.S. Nuclear Weapons” and co-editor of the “Handbook of International Relations.” His research consistently examines the intersection of technology and security, with particular attention to nuclear weapons, autonomous weapons systems, and artificial intelligence in military applications. In 2022, he shared the Bernard Brodie Award with Elvira Rosert for their work on the international regulation of autonomy in weapon systems.
The expert’s appearances on major German platforms are frequent. According to his Wikipedia profile, Sauer has been a recurring guest on “Maybrit Illner,” including appearances on March 1, 2023; August 22, 2023; November 26, 2024; May 20, 2025; June 12, 2025; and March 2, 2026. He has also contributed to public discourse through op-eds, think tank briefings, and testimony before the German Bundestag on defense and security matters.
Beyond television, Sauer plays an active role in international security forums. He is a member of the International Committee for Robot Arms Control, part of the leadership team of the International Panel on the Regulation of Autonomous Weapons, and involved in the Advisory Group on Technological Responsibility for the Future Combat Air System (FCAS) program — a joint European initiative to develop a next-generation fighter jet. He also supports the Aquila ascendens science prize and regularly co-hosts the podcast “Sicherheitshalber” with colleagues Ulrike Franke, Carlo Masala, and Thomas Wiegold, where they analyze developments in German and European security policy.
The critique voiced by Sauer and fellow experts on the show reflects broader unease in European capitals about the reliability of U.S. Security guarantees under unpredictable leadership. Analysts warn that when superpowers deviate from predictable behavior in nuclear deterrence — such as questioning alliances or suggesting conditional nuclear use — it increases the risk of miscalculation by adversaries and strains alliance cohesion.
Such concerns are not hypothetical. Following Trump’s presidency, European nations have pursued greater strategic autonomy, including initiatives like the European Defence Fund and permanent structured cooperation (PESCO) under the EU framework, aimed at reducing dependence on external security guarantees. Sauer has commented on these trends, noting that while European efforts to build independent capacity are prudent, they cannot fully replace the deterrent effect of the U.S. Nuclear umbrella in the near term.
His work underscores a central dilemma in contemporary security policy: how to maintain credible deterrence in an era of great power competition and technological disruption without relying on volatile political leadership. Sauer advocates for strengthening arms control norms, increasing transparency in military AI development, and reinforcing multilateral institutions as buffers against unilateral decision-making.
As of early 2026, Sauer continues to contribute to policy debates through academic publications, media engagement, and advisory roles. His recent focus includes the implications of AI integration into nuclear command and control systems, a topic he has addressed in interviews and conference panels. He emphasizes that while automation may improve certain aspects of crisis response, it also introduces new risks of escalation due to speed, opacity, and potential for misinterpretation.
The “Maybrit Illner” segment exemplifies the role of informed public discourse in democracies, where experts like Sauer help translate complex strategic issues into accessible public conversation. By grounding critique in years of research and institutional affiliation, such contributions aim not to sensationalize but to clarify the stakes of policy choices affecting global peace and stability.
For readers seeking to follow Sauer’s ongoing analysis, his publications are accessible through academic platforms such as Google Scholar and ORCID, and his public appearances are regularly announced via the Metis Institute and University of the Bundeswehr Munich channels. His insights remain particularly relevant as NATO navigates burden-sharing debates, European defense integration progresses, and emerging technologies reshape the landscape of modern warfare.
Stay informed about developments in international security policy by following credible think tanks, academic institutions, and verified expert commentary. Share your thoughts on how democracies can balance alliance reliance with strategic autonomy in the comments below.