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Cooperative Defense Acquisitions Strengthen U.S.-Japan Alliance

Japan has taken major steps toward increased defense capabilities and closer cooperation with the United States and other countries. CSIS Japan Chair Adjunct Fellow Gregg Rubinstein identifies the challenges and opportunities in advancing U.S.-Japan armaments cooperation.

Commentary by Gregg Rubinstein — January 30, 2025

Building a Mutually Complementary Supply Chain between Japan and the United States

Japan’s recent increases in defense spending and relaxation of defense export rules have prompted a new era of opportunity in defense industrial cooperation with the United States, specifically in the realm of uncrewed aerial systems and electro-optical sensors.

Report by Christopher B. Johnstone, Cynthia R. Cook, Audrey Aldisert, Leah Klaas, Christine Michienzi, Gregg Rubinstein, Gregory Sanders, and Nicholas Szechenyi — August 15, 2024

Building Defense Cooperation with Japan: Acquisition and Industry

Japan has ambitious plans to increase defense budgets and promote more effective acquisition practices. CSIS adjunct fellow Gregg Rubinstein outlines immediate challenges affecting U.S.-Japan armaments cooperation and ways to strengthen collaboration over the long term.

Commentary by Gregg Rubinstein — August 28, 2023

Japan’s New Defense Buildup Plan and Its Defense Industrial Base

Japan’s new Defense Buildup Plan (DBP) outlines the path to a paradigm shift in Self Defense Force (SDF) capabilities. CSIS Japan Chair adjunct fellow Gregg Rubinstein assesses plans to refine Japan’s defense acquisition policies and bolster its defense industrial base.

Commentary by Gregg Rubinstein — January 26, 2023