Personal profile
Personal information
Wolfgang Wagner studied Political Science, German Literature and Philosophy in Tübingen (Germany) and Yellow Springs, Ohio (USA). He holds a PhD from the Johann-Wolfgang-Goethe University Frankfurt am Main and taught at the universities of Tübingen, Frankfurt, Konstanz, Darmstadt and Mannheim. Between 2002 and 2007 he worked at the Peace Research Institute Frankfurt (PRIF). He was a visiting scholar at the University of California at Berkeley in 2007, at the Wissenschaftszentrum Berlin in 2016 and 2017 and at the European University Institute in Florence in 2019.
Research
My research revolves around domestic politics and conflict in liberal democracies. Simply put: what makes liberal democracies resort to armed force? And why do some democracies use force more frequently than others?
This line of research is inspired by the so-called Democratic Peace Theory, i.e. the idea that democracies stand out for not waging war against each other. Together with my former colleagues from the Peace Research Institute Frankfurt, particularly Anna Geis and Harald Müller, I have argued that the wars waged by democracies are just as interesting as the absence of war amongst democracies. What is more, there are many additional ways in which democracies differ from other states in international relations, and we have pleaded to broaden research beyond the Democratic Peace narrowly understood towards a research program on “democratic distinctiveness”.
Together with my colleague at the VU law faculty, Wouter Werner, I have been looking into the role of punitivity in motivating the use of force in liberal democracies. With a former PhD student of mine, Michal Onderco, I have argued that liberal democracies’ reactions to the violation of an international norm is inspired by a domestic political culture of dealing with norm violations. We have shown that countries with a high prison population are also more confrontational in their security policies, e.g. towards Iran and North Korea, than countries with low numbers of citizens imprisoned. This indicates that international norm violations pose the same challenge as norm violations domestically, and states practice the same ideas domestically as internationally.
Also inspired by Democratic Peace Theory, I have been very interested in the democratic control of military missions, particularly by way of parliaments. Together with my former colleagues at the Peace Research Institute Frankfurt, I have collected data on the parliamentary control of military missions in 49 countries. We have found enormous differences ranging from very powerful parliaments whose consent is required before any military deployment can be made to very weak ones that are informed at best. We have explored various possible explanations for these differences and found that different levels of external threats as well as past experiences with (failed) military missions account for this variety.
Most recently, my interest in parliaments has led me to become more interested in political parties. After all, legislative-executive relations are usually superseded by party politics that pit the opposition against the governmental majority in parliament. Together with Juliet Kaarbo, Anna Herranz-Surrallés and Falk Ostermann, I have been examining whether political parties systematically differ in their positions on military missions. Currently, we are looking into the actual votes about military missions (see also our website deploymentvotewatch.eu).
Ancillary activities
- International Politics (journal) | London | Adviseur | 2005-01-01 - present
- Friedrich Ebert Stiftung | Bonn | Vertrauensdozent | 2011-01-01 - present
- Peace Research Institute Prague | Prague | Adviseur | 2024-01-01 - 2028-12-31
- Contemporary Security Policy | London | Adviseur | 2024-01-01 - 2029-12-31
- Greifswald University | Greifswald | Co-Supervisor of PhD student | 2024-01-01 - 2025-12-31
- Journal of International Relations and Development | Basingstoke | International Advisory Board | 2025-04-01 - 2028-12-31
Ancillary activities are updated daily
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
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SDG 16 Peace, Justice and Strong Institutions
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Collaborations and top research areas from the last five years
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Party-political contestation of European trade policy: An analysis of roll call votes in the European Parliament
Otjes, S., van der Veer, H. & Wagner, W., Mar 2026, In: JCMS: Journal of Common Market Studies. 64, 2, p. 559-581 23 p.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access -
Fighting for their country: How proximate conflict shapes citizens’ attitudes
Sorg, A., Wagner, W. & Onderco, M., 2026, In: European Journal of International Security. 11, 2, p. 228 - 246 19 p.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access -
The Future of NATO: Country Report Netherlands
Wagner, W., 12 Jul 2025, Bonn: Friedrich-Ebert-Stiftung. 11 p.Research output: Book / Report › Report › Popular
Open Access -
Die Zukunft der NATO: Laenderstudie Niederlande
Wagner, W., 23 Jun 2025, Bonn: Friedrich-Ebert-Stiftung. 8 p.Translated title of the contribution :The Future of NATO: Country Study Netherlands Research output: Book / Report › Report › Popular
Open Access -
Contesting Western support for Ukraine: The radical left in the European Parliament
Wagner, W., 2025, In: Journal of European Integration. 47, 5, p. 629-651 23 p.Research output: Contribution to Journal › Article › Academic › peer-review
Open Access
Courses
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International Security
Mello, P. A., Luitjens, M., Poss, S., Wagner, W. & Martin, M.-A. 1/09/22 → 31/08/24
Course
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Armed Forces and Society. Dutch Public Opinion on the Military and Defence in Comparative Perspective
Wagner, W. (Principal Investigator), Molendijk, T. (Principal Investigator), Onderco, M. (Principal Investigator) & Peperkamp, L. (Principal Investigator)
1/08/25 → 31/07/27
Project: Research
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COST Action "Peace Research Community Europe"
Wagner, W. (Project Researcher)
21/10/24 → 20/10/28
Project: Research
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NEST: Navigating the Storm: European Political Contestation in Geopolitical Transformation
Wang, C. (Principal Investigator), Mello, P. A. (Project Researcher), Crum, B. (Project Researcher) & Wagner, W. (Project Researcher)
1/09/23 → 30/11/27
Project: Research
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Party Political Contestation of the Liberal International Order
Wagner, W. (Project Researcher)
1/01/23 → 31/12/26
Project: Research
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Party-Political Contestation of the Liberal International Order
Wagner, W. (Project Researcher)
1/01/23 → 31/12/26
Project: Research
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Multilateralism under Pressure. Party Politics, Contestation, and the Ratification of International Treaties
Wagner, W. (Speaker)
1 Apr 2026Activity: Lecture / Presentation › Academic
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Bridging Divided Perspectives: Conflict Resolution and Mediation
Wagner, W. (Participant)
17 Jan 2025Activity: Participating in or organising an event › Other event › Academic
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Opposing Support for Ukraine. Why do parts of the public in Europe not support military aid to Ukraine?
Wagner, W. (Speaker)
26 May 2025Activity: Lecture / Presentation › Academic
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Nobel Peace Prize Nomination Ceremony
Wagner, W. (Participant), Luitjens, M. (Participant) & Hogan, J. (Participant)
28 Jan 2025Activity: Participating in or organising an event › Other event › Societal
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The politics of economic globalization in Sweden. Labor, business, and political parties in a changing global environment
Wagner, W. (Examiner)
5 Jun 2025Activity: PhD thesis Examination › PhD thesis examination
Prizes / Grants
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Navigating the Storm (NEST): European Political Contestation in Geopolitical Transformation
Wang, C. (Recipient), Mello, P. A. (Recipient), Crum, B. (Recipient) & Wagner, W. (Recipient), 2023
Prize / Grant: Grant › Academic
Press/Media
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Nobelcomoité staat voor dilemma met prjs voor vrede in oorlogstijd
11/10/24
1 item of Media coverage
Press/Media: Expert Comment
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W. Wagneris: NATO parama Baltijos valstybėms – geležinė, bet tik tam tikromis sąlygomis Skaitykite daugiau:
12/05/24
1 item of Media coverage
Press/Media: Expert Comment
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Militaire dienstplicht: zou u willen vechten voor uw land?
20/04/24
1 item of Media coverage
Press/Media: Expert Comment
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Military service: Raining on their parade
20/04/24
1 item of Media coverage
Press/Media: Expert Comment
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Bendes terroriseren Haïti: wie kan de chaos nog beteugelen?
21/03/24
1 item of Media coverage
Press/Media: Expert Comment
Datasets
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Party political contestation of the liberal international order
Wagner, W. (Creator), VU, 2024
DOI: 10.48338/vu01-srozt8, https://publication.yoda.vu.nl/full/VU01/SROZT8.html
Dataset / Software: Dataset
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Supplementary Materials for journal article Contesting Western Support for Ukraine
Wagner, W. (Creator), Vrije Universiteit Amsterdam, 2024
DOI: 10.48338/vu01-3f03wh, https://publication.yoda.vu.nl/full/VU01/3F03WH.html
Dataset / Software: Dataset
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Parliamentary Deploymentvote Database
Wagner, W. (Creator), Ostermann, F. (Creator), Boeller, F. (Creator), Christiansen, F. J. (Creator), Coticchia, F. (Creator), Fonck, D. (Creator), Herranz-Surrallés, A. (Creator), Kaarbo, J. (Creator), Kucmas, K. (Creator), Pedersen, R. (Creator), Raunio, T. (Creator), Reykers, Y. (Creator), Smetana, M. (Creator) & Vignoli, V. (Creator), deploymentvotewatch, 1 May 2019
http://deploymentvotewatch.eu/?page_id=2
Dataset / Software: Dataset
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Parliamentary Deploment Votes Database
Ostermann, F. (Creator), Baciu, C. (Creator), Böller, F. (Creator), Čepo, D. (Creator), Christiansen, F. (Creator), Coticchia, F. (Creator), Fonck, D. (Creator), Herranz-Surrallés, A. (Creator), Kaarbo, J. (Creator), Kim, J. H. (Creator), Kučmáš, K. (Creator), Lagassé, P. (Creator), McDonagh, K. (Creator), Onderco, M. (Creator), Pedersen, R. (Creator), Raunio, T. (Creator), Reykers, Y. (Creator), Sonneveld, R. (Creator), Smetana, M. (Creator), Tago, A. (Creator), Terzi, Ö. (Creator), Trainauskiene, S. (Creator), Vignoli, V. (Creator) & Wagner, W. (Creator), Harvard Dataverse, 21 Jul 2021
DOI: 10.7910/DVN/LHYQFM
Dataset / Software: Dataset
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PDVD_votes_V2.csv
Wagner, W. (Creator), Wagner, W. (Contributor), Wagner, W. (Contributor), Ostermann, F. (Contributor), Böller, F. (Contributor), Cristiansen, F. J. (Contributor), Coticchia, F. (Contributor), Fonck, D. (Contributor), Herranz-Surrallés, A. (Contributor), Kaarbo, J. (Contributor), Kucmas, K. (Contributor), Onderco, M. (Contributor), Pedersen, R. (Contributor), Raunio, T. (Contributor), Reykers, Y. (Contributor), Smetana, M. (Contributor) & Vignoli, V. (Contributor), Harvard Dataverse, 2020
DOI: 10.7910/dvn/ximaae/oh7f3w, https://dataverse.harvard.edu/file.xhtml?persistentId=doi:10.7910/DVN/XIMAAE/OH7F3W
Dataset / Software: Dataset