Hiroshi NISHIKAI (西海 洋志)


Current affiliation

・Associate Professor, School of International Liberal Arts, Yokohama City University


Activities in the Association

Session 1 “Changing UN Peace Operations Policies”, Annual meeting of the Global Peacebuilding Association of Japan (The University of Tokyo, December 2, 2017)


Professional history

・Associate Professor, School of International Liberal Arts, Yokohama City University (2024-)

・Director, Seigakuin Sustainability Center

・Consultant, Asia-Pacific Centre for the Responsibility to Protect (APr2)

・Associate Professor, Faculty of Political Science and Economics, Seigakuin University (2019-)

・Program Coordinator, The Hiroshima Peacebuilders Center (2016-2019)

・Research Assistant, The Japan Institute of International Affairs (2008-2012)


Academic training

・Ph.D. (Global Studies), University of Tokyo

・MLitt. (International Political Thought), University of St Andrews

・MA (International Politics), Aoyama Gakuin University



・Hiroshi Nishikai, “The Future of State-building and the Responsibility to Protect: Sovereignty-buildingas a Way Forward?” International Affairs, No. 706, 2022, pp.42-50.


・Hiroshi Nishikai, Responsibility to Protect in International Political Thought, Kokusai Shoin, 2021


・Hiroshi Nishikai, “Re-examining the Trajectory of the Responsibility to Protect (R2P) Concept: What outcomes we got from the 2005 World Summit?”, The Journal of Seigakuin University, Vol. 32, No. 2, 2020, pp.17-32.


・Masataka Nakauchi, Hiroshi Takazawa, Nagafumi Nakamura, Hirotsugu Ohba (eds.), The Responsibility to Protect: Basic Documents and Commentaries, from the end of the Cold War to 2016, Osaka University Press, 2017.

・Hiroshi Takazawa, “Change of the International Society and (re)Socialization of the Concept of Security”, in Junichi Shibuya and Hazuhisa Honda (eds.), Considering the International Society in the 21st Century: 38 Chapters for Understanding the Multi-layered World, Junposha, 2017, pp.48-57.

・Hiroshi Takazawa, “Securitization Dilemma: Development of the Responsibility to Protect (R2P) concept and Supra-national Power”, in Hirotsugu Ohba (ed.), Inquisitions into Supra-national Power: Potential and Vulnerability, Nanzan University Institute for Social Ethics, 2017, pp.157-179.


・Hiroshi Takazawa, “Securitization(s) and Aspects of Political Time: A Case Study on Conceptions of the ‘Responsibility to Protect (R2P)’”, The Annuals of Japanese Political Science Association, 2015-II, pp. 257-278.


・Hiroshi Takazawa, “The ‘Third Strand’ of the Responsibility to Protect (RtoP): Focusing on RtoP Discourses/Practices in the UN since 2009”, The United Nations Studies, Vol. 15, 2014, pp.145-172.