Tetsuo KOTANI is a professor at Meikai University and a chief research fellow at the Japan Institute of International Affairs (JIIA). His research focus is Japan’s foreign/security policy, the US-Japan alliance, and international relations and maritime security in the Indo-Pacific region. He won the 2003 Japanese Defense Minister Prize. He has published numerous articles both in English and Japanese, and his English publications include “Crisis Management in the East China Sea” (SIPRI Policy Brief, 2015) and “China’s Gray-Zone Strategy in the East China Sea: Upping the Ante” (National Bureau of Asian Research, 2026). He received a master’s degree from Doshisha University.