Lt. Gen. Yamaguchi (Ret.) is currently Director for International Programs and Professor of military history and strategy at the National Defense Academy of Japan. He has held positions as Senior Defense Attaché at the Japanese Embassy in the United States, Deputy Commandant of the GSDF Aviation School, and Vice President of the National Institute for Defense Studies. Since 2006, he held responsibilities as Commanding General of the GSDF Research and Development Command until his retirement from active duty in December 2008. He joined the National Defense Academy in April 2009. After the Great East Japan Earthquake, Lt. Gen. Yamaguchi served at the Prime Minister’s Office as Special Adviser to the Cabinet for Crisis Management until September 2011. He is a graduate of the National Defense Academy, majoring in applied physics and originally trained as an army aviator flying helicopters. He received his M.A. from the Fletcher School of Law and Diplomacy and was a National Security Fellow at the John M. Olin Institute for Strategic Studies at Harvard (1991-1992).