ARIGA Umi

Education

September 2016 Entered University College Maastricht, Major in Social Sciences (Netherlands)
July 2019 Graduated from University College Maastricht, Bachelor of Arts in Liberal Arts and Sciences, Graduated with Honours
September 2020 Entered the University of Tokyo, Graduate School of Public Policy, CAMPUS Asia Double Degree Program (Japan)
September 2021 Entered Seoul National University, Graduate School of International Studies, CAMPUS Asia Double Degree Program (South Korea)
August 2023 Graduated from the University of Tokyo, Master of Public Policy
August 2023 Graduated from Seoul National University, Master of International Studies in International Cooperation, Graduated with Honours

Professional Experience

August 2019 Joined NATO Political Advisor’s Office, Brunssum, Netherlands – Long-term Paid Intern
February 2020 Completed internship at NATO Political Advisor’s Office

January 2022 Joined United Nations Office for Disarmament Affairs, Vienna, Austria – Policy Intern
May 2022 Completed internship at United Nations Office for Disarmament Affairs

July 2023 Joined J.P. Morgan Securities Japan Co., Ltd., Tokyo – Cash Equity Analyst
December 2024 Left J.P. Morgan Securities Japan Co., Ltd.

January 2025 Joined Vienna Center for Disarmament and Non-Proliferation, Vienna, Austria – Japan Chair Fellow (Fixed-term Contract)
July 2025 Completed contract at Vienna Center for Disarmament and Non-Proliferation

September 2025 – Present Joined Japan Institute of International Affairs, Tokyo – Research Fellow

Selected Research Papers

・"Europe’s Procurement Paradox: How Fragmented Defence Spending Undermines NATO’s Deterrence" (Paris: Institut d’études de géopolitique appliquée, Observatoire français de
l’OTAN, October 1, 2025).

Current Research Projects

Desirable international economic environment in light of Japan’s strengths and vulnerabilities from the perspective of economic security
Ⅱ Advanced technologies and security

Influence of domestic factors in major countries surrounding Japan on international order transition
Ⅰ The United States