Research keywords (1)：
US-Japan Relations, National Police Reserve, Japan, United States, Security, International Relations, Self-Defense Forces, Douglas MacArthur, Yoshida Shigeru, Occupation Japan, 1945-1960, History, Politics.
Member of the Society of Historians of American Foreign Relations
, Member of the Economic History Society of Australia and New Zealand.
, Member of the European Association of Japanese Studies.
, Member of the British Association of Japanese Studies.
, Member of the Association of Asian Studies.
, Fellow of the UK Higher Education Academy.
, Fellow of the Royal Asiatic Society.