Harrison Prétat

Deputy Director and Fellow, Asia Maritime Transparency Initiative
Harrison Prétat

Harrison Prétat is deputy director and fellow with the Asia Maritime Transparency Initiative at the Center for Strategic and International Studies (CSIS). His research focuses include maritime security, U.S.-China relations, international law, and multilateralism in Asia. He holds an MA in international relations from Syracuse University.

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Inaugural Manila Strategy Forum

The Southeast Asia Program is pleased to present the inaugural Manila Strategy Forum, bringing together leading experts from the Philippines and the United States to discuss some of our most pressing regional and global challenges.

Event — September 9, 2025

The Risks of U.S. Deep-Sea Mining

The United States has begun taking steps to secure its access to seabed minerals. But U.S. unilateral mining on the high seas poses grave risks to the rules-based regional order.

Commentary by Harrison Prétat and Monica Sato — August 26, 2025

Audio Briefs

The Risks of U.S. Deep-Sea Mining

An audio version of “⁠The Risks of U.S. Deep-Sea Mining⁠,” a new Commentary by CSIS’s Harrison Prétat and Monica Sato. This audio was generated with text-to-speech by Eleven Labs. 

Podcast Episode by Harrison Prétat and Monica Sato — August 26, 2025

Audio Briefs

China and Vietnam Are Driving Reef Destruction in the South China Sea

Claimants in the South China Sea have created thousands of acres of artificial land to support their competing claims, causing irreparable damage to the marine habitat and leading to calls for international legal action against environmentally destructive practices.

Analysis by Harrison Prétat, Monica Sato, and Gregory B. Poling — January 30, 2025

Manila and Beijing Clarify Select South China Sea Claims

The Philippines’ passage of two new maritime laws and China’s publication of baselines around Scarborough Shoal are the latest in a series of legal developments in the South China Sea. But how will clarifying claims affect tensions in disputed waters?

Critical Questions by Harrison Prétat and Gregory B. Poling — November 21, 2024

Energy Security and the U.S.-Philippine Alliance

The Philippines’ fragile energy outlook threatens to undermine allied efforts to secure its strategic autonomy vis-à-vis an assertive China.

Brief by Harrison Prétat, Yasir Atalan, Gregory B. Poling, and Benjamin Jensen — October 21, 2024