CSIS in DC Hosts ‘What’s Next for Japanese Security Policy and U.S.-Japan Relations?’ with Perspectives from the Diet

Lead: The Center for Strategic and International Studies (CSIS) in Washington, D.C., hosted a public discussion titled “What’s Next for Japanese Security Policy and U.S.-Japan Relations? Perspectives from the Diet.” The event gathered legislators and policy experts to examine recent shifts in Japan’s security posture and implications for the U.S.-Japan alliance.

Reporting: Speakers at the CSIS event framed the conversation around evolving threats in East Asia, adjustments in Tokyo’s defense policy, and how those changes intersect with U.S. security commitments in the region. The session emphasized the role of Japan’s Diet — the country’s national legislature — in shaping and legitimizing new policy directions.

Reporting: Panelists and analysts discussed both policy choices and political considerations inside Japan, including how lawmakers are responding to regional dynamics and alliance management. The forum highlighted areas of cooperation, such as joint deterrence measures and defense-industrial ties, as well as potential friction points that Washington policy teams will need to monitor.