Lt. Gen. Yamaguchi, Japan Ground Self Defense Force (Retired) is a professor at the International University of Japan. In 2017, he was appointed as a member of the Group of Eminent Persons for Substantive Advancement of Nuclear Disarmament by the Foreign Minister of Japan. He served as Senior Defense Attaché at the Japanese Embassy in the United States (1999-2001), Vice President of the National Institute for Defense Studies (2005-2006), and Commanding General of the GSDF Research and Development Command (2006-2008). In April 2009, Lt. Gen. Yamaguchi joined the National Defense Academy (NDA) as a professor of Military History and Strategy. After the earthquake in Japan in March 2011, he served at the Prime Minister’s Office as Special Adviser to the Cabinet for Crisis Management until September 2011. Lt. Gen. Yamaguchi served as a National Security Fellow at John M. Olin Institute for Strategic Studies, Harvard University in 1991-1992. He graduated from the NDA in 1974 majoring in applied physics and received his M.A. from the Fletcher School of Law and Diplomacy at Tufts University in 1988.