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Experts

Director/Senior Research Fellow         

Katsuya Yamamoto, Rear Admiral (ret.) JMSDF

Katsuya Yamamoto

Affiliation

Japan-U.S. and Security Studies Unit
Strategy and Deterrence Program

Expertise/Areas of interest

Security (strategic studies, geopolitics)/Japan-U.S. Alliance/China/Taiwan and Indo-Pacific studies

Languages

Japanese/Mandarin/English

Academic/Professional Background

Katsuya “Kats” Yamamoto, RADM (ret.) Japan Maritime Self-Defense Force (JMSDF) joined SPF as a senior research fellow in April 2023.

A native of Kobe, Kats graduated from the Japan National Defense Academy and earned a Master of Policy Studies degree from the National Graduate Institute for Policy Studies. He also attended the Maritime Law Enforcement Officer Course at the U.S. Coast Guard Training Center in Yorktown, Virginia; the Command & Staff Course at the JMSDF Staff College; and the Regular Course of the National Institute for Defense Studies (NIDS) and the People's Liberation Army National Defence University in Beijing.

He was a surface warfare officer, serving onboard various destroyers and commanding the JS SHIRAYUKI (DD123). He also worked in a variety of positions including Chief of the International Policy Planning Section at the Joint Staff Office and Director of National Security & Strategic Studies Office in the JMSDF Staff College.

As a military diplomat, Kats served as Defense/Naval Attaché to China and President of the Naval Attaché Corps in Beijing. He later served as Liaison Officer and International Military Professor of the U.S. Naval War College in Rhode Island. Kats enjoyed collaborating with the distinguished faculty members and published many articles in Japanese and English. His last mission of the active duty was as Director of Education at NIDS.

He has been awarded the Ba-Yi Medal from the Ministry of National Defense, PRC, and the Meritorious Service Medal from the U.S. Navy. Kats is a Board member of the Japan-America Society of Southern New England/JANAFA Newport, and the Visiting Fellow of the Philippine Public Safety College.

Projects

US-China Relations and Japan's Security

  • Publications
  • Reports
  • Videos

Publications

Publications Publishing company Date of Publication
"China Maritime Gray Zone Operations" [co-authored with Andrew S. Erickson et al.]  Naval Inst 2019

Reports

Reports Date of Report
Taiwan from the Japanese Perspective
https://toda.org/policy-briefs-and-resources/policy-briefs/taiwan-from-the-japanese-perspective.html
September 14, 2025
Humanitarian Friction Arises During the Transition Period when a Land Power Transforms into a Sea Power
https://cuts-global.org/pdf/indo-pacific-compendium-the-innovative-route-to-development.pdf
May, 2025
The National Interest
Why Don’t Japanese and Taiwanese Militaries Talk to Each Other?
https://nationalinterest.org/feature/why-dont-japanese-and-taiwanese-militaries-talk-each-other-30667
September 6, 2018
The National Interest
China’s Military and Evacuation Plans from South Korea
https://nationalinterest.org/feature/chinas-military-evacuation-plans-south-korea-25238
April 6, 2018
The National Interest
How China’s Navy Is Preparing to Fight in the ‘Far Seas’
https://nationalinterest.org/feature/how-chinas-navy-preparing-fight-the-far-seas-21583
July 19,2017
The National Interest
Three PLAN Officers May Have Just Revealed What China Wants in the South China Sea
https://nationalinterest.org/feature/three-plan-officers-may-have-just-revealed-what-china-wants-21458
July 10, 2017

Videos

Webinar SPF China Observer, July 10, 2024
Security Studies Program

Webinar SPF China Observer, July 10, 2024

September 4, 2024
China’s fast breeder reactor begins operation: Possibility of accelerating nuclear arms race
Security Studies Program

China’s fast breeder reactor begins operation: Possibility of accelerating nuclear arms race

March 8, 2024
China’s Annexation of Remote Islands Through Selective Use of Cognitive Warfare & Armed Force
Security Studies Program

China’s Annexation of Remote Islands Through Selective Use of Cognitive Warfare & Armed Force

March 8, 2024
As of  October 2, 2025

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