Yuka Koshino is a Research Fellow for Japanese Security and Defence Policy at International Institute for Strategic Studies focusing on Japan’s foreign relations, security, defence, and technology policies, and economic statecraft. 

Prior to joining the IISS, Yuka served as a research associate with the Japan Chair at the Center for Strategic and International Studies, where she provided independent analysis on US–Japan relations and US strategy in the Indo-Pacific region. 

Yuka also has experience providing policy and business analysis on Asia's high-tech and defence industries at the Avascent Group and the Asia Group in Washington DC. She previously reported and published news stories on Japanese political, economic and business affairs at Tokyo bureaus of the Wall Street Journal, the Economist and the Japan Times.

Yuka holds a MA in Asian studies from the Edmund A. Walsh School of Foreign Service at Georgetown University and a BA in law from Keio University, where she completed an academic year at the University of California, Berkeley. She is also affiliated with the Asia-Pacific Initiative in Tokyo as the inaugural Matsumoto-Samata Fellow.