The main aim of CHIOS is to foster research, cooperation, dissemination and teaching – geared towards academia and public policy development both on the historical roots and current predicaments of Northern Europe’s geopolitical position in a European, Atlantic and global perspective.
As such, CHIOS has three focus areas:
Prof Michael Jonas, PhD 2009 (Univ. Helsinki), habilitation 2016 (Helmut-Schmidt-Univ.), is a modern historian interested in the history of international politics, diplomacy, international law, war, and conflict. Educated in Berlin and Helsinki, he has worked on the military, political, and diplomatic history of both world wars, small states in international politics, and forms of international organization and empire. He has been based at Helmut-Schmidt-University, University of the Federal Armed Forces, Hamburg, since 2009, functioning – from late 2024 onwards – as the director of HSU’s Centre for History, Strategy and International Order (CHIOS). Besides his association with HSU, Michael Jonas is an adjunct professor (docent) of European History at the University of Helsinki. He has also been a visiting research fellow at Oxford University’s Changing Character of War centre (Michaelmas 2010), a visiting lecturer in the War Studies programme of the University of Glasgow, and a visiting professor at the University of Florence (2023, 2024). A more detailed biography and full list of publications can be found here. Read more
Marine Pierre (PhD 2022), is a modern historian whose current research bridges social history, diplomatic history, and the history of international organizations, with a particular focus on expertise, transnational careers, and bureaucratic cultures. She is a postdoctoral researcher at the Saxo Institute, University of Copenhagen, where she has been based since July 2023. She previously worked within the research project Autonomy and Expertise in International Administrations, 1940s-1970s, led by Haakon A. Ikonomou, conducting research on the administrative history of the Organisation for European Economic Co-operation (OEEC) and the Organisation for Economic Co-operation and Development (OECD), and their relations with other international organizations. From January 2026, she joins the ERC-funded project INNER_LEAGUE: A Social-Bureaucratic History of the League of Nations Secretariat, which investigates the socio-administrative history of the Secretariat of the League of Nations (1919-1946). Her research focuses on the formation of emotional, educational, and professional communities within international administrations, approaching international organizations as lived social spaces and key sites of identity and expertise production. Marine Pierre holds a PhD in Modern History from the University of Geneva and Université Paris 1 Panthéon-Sorbonne. Her doctoral dissertation examined relations between the European Parliament and Turkey (1979-2009), analysing the political uses of religion in debates surrounding Turkey’s candidacy to the European Economic Community/European Union.
She is currently affiliated as a researcher with the Maison de l’histoire and serves as Research Associate at the Graduate Institute of International and Development Studies (IHEID), within the Centre for Digital Humanities and Multilateralism. She was previously a Simone Veil Short-Term Fellow (Project House Europe) at Ludwig-Maximilians-Universität München.
Her research spans European history, European integration, diplomacy, international relations, and the social and administrative history of international organizations. Across these fields, her work foregrounds everyday practices, professional networks, and bureaucratic cultures as central drivers of international governance.
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Louis Clerc, PhD (University of Strasbourg, 2007), is Professor of Contemporary History at the University of Turku. His research focuses on the history of international relations, with particular emphasis on diplomacy, public diplomacy, and cultural diplomacy in the Nordic countries. He has published extensively on Franco-Nordic relations and the evolution of diplomatic practices, and is a founding member of the Network for New Diplomatic History. Educated in Strasbourg, Clerc earned his doctorate in contemporary history and later became docent in European contemporary history at Turku. He has held several academic leadership roles, including Dean of the Faculty of Social Sciences at the University of Turku (2020–2022). Read more
Haakon A. Ikonomou is a tenure track assistant professor at the Saxo-Institute at the University of Copenhagen (UCPH). A historian of international organizations, internationalism, global governance, international bureaucracy, and diplomacy, he takes inspiration from digital, global, prosopographical, biographical, institutional, social, and oral history approaches. From 2023 to 2025, he is PI on the project Autonomy and Expertise in International Administrations, 1940s-1970s (Independent Research Fund Denmark) and from 2025 to 2030 he will be heading the project INNER_LEAGUE A social-bureaucratic history of the League of Nations Secretariat (ERC Consolidator Grant). Ikonomou is director of HUM:Global (Faculty of Humanities, UCPH), steering group member and co-founder of GloBio (Global Biography Working Group), and co-chair of META-UN (4EU+ Global Outreach Project). For a full list of publications, see his research profile. Read more

Elihu Professor of History and Global Affairs, Yale University

Director, Centre for International Security, Hertie School, Berlin

Milbank Prof. of Politics and Int. Affairs, Princeton University

Professor of Modern History, University of Oslo

History Department, University of Marburg

Director, Kissinger Center for Global Affairs, SAIS

CEMES & META-UN Chair, Saxo Inst., University of Copenhagen

fm. Director, Centre for Global History, University of Konstanz

Chair for Leadership in Global Affairs, UT Austin

Professor of European History, University of Geneva

Director, Centre for Geopolitics, University of Cambridge

Institute for History, Leiden University

Saxo Institute, University of Copenhagen

President, Helmut-Schmidt-University

Pro-Dean Faculty of Humanities, Associate Professor, University of Oslo.
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