• Senior Fellow, Sasakawa Peace Foundation, Japan

• Senior Adjunct Fellow, Japan Institute of International Affairs, Japan

• Advisor, Japan Forum for Strategic Studies, Japan

• Special Advisor to the CEO, SAMPA K.K., Japan

• 2017-2020: Professor of the U.S. Naval War College and CNO’s Distinguished International Fellow, USA

• 2014-2016: 32nd Chief of Staff of the Japan Maritime Self-Defense Force (JMSDF), Japan

• 2012-2014：Commandant of JMSDF Yokosuka District, Japan

• 2011-2012: Vice Chief of Staff of JMSDF, Japan

• 2010-2011: Commandant of JMSDF Ominato District, Japan

• 2008-2010: Director of the MSO Operations and Plans Department, Japan

• 2007-2008: Chief of Staff, Kure District, Japan

• 2006-2007: Director, the C4I Systems Department of Joint Staff Office,Japan