- 2024/08 - 2026/07 Japan Association for United Nations Studies Editor, Editorial Committee, Japan Association for United Nations Studies
- 2022/12 - 2024/12 Regional Centre for Strategic Studies (Sri Lanka) Member of RCSS International Research Committee
- 2016/07 - 2018/03 Hiroshima Peace Research Institute Research Member, Regionalism and Governance in Eurasia
- 2015/01 - 2015/03 JIIA COmmittee member, Research on international research institutes related to forming peace foundation commissioned by Hiroshima Prefectural Government
- 2013 - 2015 Hiroshima Peace Research Institute Editorial member, Encyclopedia on peace and security
- 2010 - 2011/03 Japan Association of Disarmament Studies Editorial member, Japan Association of Disarmament Studies
- 2006 - 2008/03 IDE-JETRO Research member, Post-conflict challenges in Africa, IDE-JETRO
- 2007 - 2008 MOFA Research member, Coordination between the UN and regional organizations in peacekeeping and peacebuilding operations
- 2005/08 - 2006/06 MOFA Member, evaluation consultant, Japan's contribution to peacebuilding
- 2004 - 2004 JIIA Research member, Conflict prevention, commissioned by MOFA
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Japan Association of Global Governance
, Japan Association of Disarmament Studies
, The Peace Studies Association of Japan
, Japan Association of International Relations
, Japan Association for United Nations Studies
, Japanese Society of International Law
, International Studies Association (ISA)