Aiming for a Quasi-alliance

Building a More Robust Japan-Philippines Security Partnership

Japan and the United States have introduced strategies to maintain regional stability and prosperity by realizing a Free and Open Indo-Pacific region, and enhancing cooperation with Southeast Asian partners such as the Philippines is critically important to those efforts. Japan has a long history of engagement with the Philippines rooted in economic cooperation, but gradually expanding the agenda to include defense cooperation and capacity building is critical to managing an increasingly complex regional security environment. Japan should further develop its security partnership with the Philippines to reflect its geopolitical importance and address its security vulnerabilities in coordination with the United States and other regional partners. This report details ways to sustain momentum for bilateral security cooperation between Japan and the Philippines as a step toward multilateral security cooperation with the United States and other partners in the future, all aimed at contributing to the stability and prosperity of the Indo-Pacific region.

This report is made possible by general support to CSIS. No direct sponsorship contributed to this report.

Kojiro Tonosaki

Former Visiting Fellow, Japan Chair