He was Vice President for Academic Affairs of Japan MoD’s National Institute for Defence Studies (NIDS). At NIDS, He was Director of Policy Simulation (2015-22), and Director of Security Studies Department (2011-2015) at NIDS.  He has been regularly attending NATO Defence College Conference of Commandants (COC), and ASEAN Regional Forum (ARF) Meeting of Head of National Defense Universities/Colleges/Institutions. He is currently a visiting professor/lecture at Self-Defence Forces Staff Colleges, Tokyo University for Foreign Studies, and National Graduate Institute for Policy Studies (GRIPS). Previously, he was an assistant director of Office of Strategic Studies of MoD, a visiting scholar at Kings College London, and Hudson Institute; His areas of expertise include alliance management, European security and NATO, Japan’s security policy and peace operations.