“…Backed by the Yoshida Doctrine, Japan focused principally on economic development and regional integration while leaving its military security in the hands of its ally, the United States. Within this 'Japan as peace state' phase (Singh, 2013), Japan relied largely on a foreign policy strategy of quiet diplomacy, soft power, and implicit regional leadership. No less proactive, this form of regional engagement -also known as 'directional leadership' , leadership by 'stealth' , and/or 'leadership from behind' (Drifte, 1998;Hook, 2009;Rix, 1993;Terada, 2001) -has played an important role in the formation and maintenance of Asia's complex architecture of regional arrangements.…”