"Background, Outlook, and Consequences of the Russia-Ukraine War" Working Group

Russia's invasion of Ukraine painfully demonstrated that large-scale interstate wars continue to be a real threat in the 21st century. The purpose of this working group is to synthesize the findings of area and security studies to explore the reasons why this war occurred, whether it could have been prevented, and what implications it has for Japan's national security in the future.

Activity records



Professor, Institute of Humanities and Social Sciences
Specialised in international relations theory, European international politics, EU Eastern enlargement and external relations.

Atsushi OGUSHI

Professor, Faculty of Law, Department of Political Science
Specialised in Humanities and Sociology / Political Science / Politics of former Soviet states, particularly Russia.

Daisuke HARADA

Project Director, Research and Analysis Department, Japan Organization for Metals and Energy Security (JOGMEC)
Diplomacy and security, international, nuclear and energy


Managing Director, Energy Economics and Society Research Institute LLC

After participating in student entrepreneurship, he joined ELEX Corporation in 2012. He worked in the Sales Department and Corporate Planning Department, where he was in charge of building the agency system, responding to the simultaneous equivalence of planned values in 2016, VPP business research and system liaison. After working for ABeam Consulting Ltd, where he was in charge of research and business support for domestic and international power markets and systems, he joined DeNA Co. in 2019. He continued to be in charge of research on domestic and international electricity markets and systems, and was also involved in the development of distributed power supply projects.He has been in his current position since March 2021.He is a member of CIGRE, a regular member of the Institute of Electrical Engineers of Japan, a member of the Public Utilities Society and the Energy and Resources Society.


Associate Professor, Faculty of Liberal Arts Department of International and Cultural Studies, Tsuda College


Head of America, Europe, and Russia Division, Regional Studies Department, National Institute for Defense Studies
Specialised in politics and security in Russia and the former Soviet Union regions.

Masafumi ASADA

Associate Professor, Faculty of Humanities and Social Sciences, Iwate University
International politics between the USSR and East Asia. 

Michitaka HATTORI

Professor of Laboratory of Slavic-Eurasian Studies, Hokkaido University
Specialises in the economic and political situation in Russia, Ukraine, Belarus and other countries of the former Soviet Union.
After working as an expert researcher at the Embassy of Japan in the Republic of Belarus and as the director of the Russian NIS Trade Association and the Russian NIS Institute, he has been in his current position since October 2022.


Project Assistant Professor/Project Research Associate

His areas of specializations are Asian Politics and International Relations, Strategy and Defense, Transport Security

Working Group 4 on the Emerging Issues in Security Studies
Working Group 5 on Indo-Pacific Transport Security (Chair)
Sub-Working Group 1 on Satellite Imagery Analysis Project
Sub-Working Group 2 on Tabletop Exercises (Chair)

Ryo HINATA-YAMAGUCHI is a Project Assistant Professor at the Research Center for Advanced Science and Technology, the University of Tokyo; Senior Non-Resident Fellow at the Atlantic Council Scowcroft Center for Strategy and Security Indo-Pacific Security Initiative; and Adjunct Senior Fellow at the Pacific Forum. Ryo has presented, published, and consulted on a variety of topics relating to defense and security, and transport governance in the Indo-Pacific. Ryo previously served as a Non-Commissioned Officer in the Japan Ground Self-Defense Force (reserve) and also held positions at the Pusan National University, Universitas Muhammadiyah Malang, FM Bird Entertainment Agency, International Crisis Group Seoul Office, Sasakawa Peace Foundation, Embassy of Japan in Australia, and the Japan Foundation Sydney Language Centre. Ryo received his PhD from the University of New South Wales, MA in Strategic and Defense Studies and BA in Security Analysis from the Australian National University and was also a Korea Foundation Language Training Fellow.

Twitter: @tigerrhy
Instagram: https://www.instagram.com/tigerrhy/
Blog (Japanese): https://note.com/tigerrhy/


PhD in Historical Sciences, Graduate School of Arts and Letters, Tohoku University. 
After working as a JSPS Research Fellow PD, he has been in his current position since 2018.
Specialises in contemporary Russian politics and diplomacy.

Tsuyoshi GOROKU

Associate Professor, Faculty of International Politics and Economics, Department of International Politics and Economics, Nishogakusha University
Specialised in the history of US-European relations and European security.

Assistant Professor at Keio University Graduate School of Law (research fellowship), researcher at EU Studies Institute in Tokyo (EUSI) (stay in Ukraine), part-time lecturer at the Maritime Self-Defence Force Staff College, before becoming a full-time lecturer at the Faculty of International Politics and Economics, Nishimatsu Gakusha University (2017-2022), current position from April 2022. . He is also a visiting researcher at the National Graduate Institute for Policy Studies (GRIPS) (2017-) and a research member of the Japan Institute of International Affairs (JIIA) (2017-). 

Yoshihiko Okabe

Education: Doctor of Philosophy in History Chubu University2021/09/30
Doctor of Philosophy in Economics Kobe Gakuin University2015/03
Research Areas: Humanities & Social Sciences Economic history Ukrainian Studies
Humanities & Social Sciences Historical studies in general
Research Interests
General studies of Ukraine
Ukraine Political economy of Ukraine
Ukrainian diaspora in Manchuria Harbin 

Yoshihisa NISHIYAMA, Ph.D.

Project Assistant Professor of RCAST, the University of Tokyo
Russian politics, historical awareness, nationalism
After working as a part-time lecturer at Chikushi Jogakuen University, Kitakyushu City University and Nagasaki Prefectural University, he became a specially-appointed assistant professor at Hokkaido University's Organisation for International Cooperation before assuming his current position.


Associate Professor

Areas of Expertise:
Russian Military Thought
Russian National Security Policy
Politics and International Relations of the Former Soviet Republics
Defence Tecunologies

Previously, Yu has held various positions, including Assistant Analyst at Ministry of Foreign Affairs of Japan, Research Fellow at Institute for Future Engineering (IFENG), Research Fellow at the National Diet Library, and also a visiting researcher at the Institute of World Economy and International Relations of the Russian Academy of Sciences (IMEMO RAN).

His publication in Japanese includes (in English translation titles): Whither Russian Military?, 2011; Putin's National Strategy: "Major Power" Russia at a Crossroads, 2016; Russia as a Military Power: New Global Strategy and Principles of Behavior, 2016. 

His book "Teikoku" Roshia no Chiseigaku (Geopolitics of Russian "Empire") published in 2019 was awarded Suntory Prize for Social Sciences and Humanities in that year.

His latest book is Gendai Russia no Gunji Shiso (Military Thought in Contemporary Russia) published in 2021.

Yu has presented and published extensively on national security policies and strategies of Russia and the former Soviet republics, as well as defense technologies.

Yu holds a BA in Social Sciences and a MA in Political Science from Waseda University.


Yukiko HAMA

Associate Professor, Graduate School of International Relations, University of Shizuoka
Assistant Professor, Department of International Relations, Faculty of Arts and Sciences, Tsuda College; Research Fellow, Institute of International Relations, Tsuda College; Visiting Fellow, Davis Centre, Harvard University; Research Fellow, Institute of Economic Research, Hitotsubashi University before assuming her current position in 2019.

Areas of expertise.
International politics, history of international relations, Russian area studies

Main research themes
Russia's Eurasian identity
The phenomenon of geopolitical 'resurgence' in emerging economies
Cultural Cold War theory


Project Researcher

Yuma Tanaka is a Project Researcher at the Research Center for Advanced Science and Technology’s Open Laboratory for Emergence Strategies (ROLES), the University of Tokyo. Before joining ROLES, Yuma was an Attaché for the Political Section at the Embassy of Japan in Ukraine. He was also previously a Project Officer for the East/Central Asia and Caucasus Department at Japan International Cooperation Agency (JICA). He also worked as an Attaché for the Economy and Economic Cooperation Section at the Embassy of Japan in Kazakhstan through 2017 to 2020. Yuma holds a M.A. from the University of Tokyo, Graduate School of Humanity and Sociology, and a B.A. from Tokyo University of Foreign Studies.