NEW DELHI — On May 26, 2026, the Quad foreign ministers announced the Indo-Pacific Maritime Surveillance Collaboration (IPMSC) during a meeting in New Delhi. The initiative, proposed by India, will initially focus on the Indian Ocean and aims to strengthen surveillance coordination and real-time information sharing among Quad members through subject matter expert exchanges and tabletop exercises.

IPMSC will use the latest tracking technologies and satellite data to provide real-time information on vessel activity in the region. The information gathered, as with the existing Indo-Pacific Partnership for Maritime Domain Awareness (IPMDA), consists of unclassified satellite tracking data. Launched in Tokyo in April 2022, IPMDA provides friendly regional countries with technology and training to support shared maritime domain awareness and remains primarily focused on the Pacific and Southeast Asia.

"The initiative seeks to leverage each of the Quad countries’ maritime surveillance capabilities to enhance information sharing," U.S. Secretary of State Marco Rubio said. Australian Foreign Minister Penny Wong added that maritime surveillance cooperation was already underway among the United States, Japan, and Australia, and emphasized that "the initiative seeks to involve India more, particularly in the Indian Ocean, in maritime surveillance cooperation."

Nagaraj Naidu, Additional Secretary in the Indian Ministry of External Affairs, described IPMSC as providing an "additional layer," which would "top up" IPMDA. Indian diplomats also stated that IPMSC does not reflect the "militarization of the Quad."

Quad countries have expressed concerns over Chinese militarization of the Indian Ocean and participation in illegal, unreported and unregulated (IUU) fishing. Chinese media reacted sharply against IPMSC, claiming it turns "development issues into bloc-based competition with clear strategic aims."

Specific details about IPMSC remain limited. It is unclear if information generated by IPMSC will be shared with partner countries outside the Quad framework. Many smaller countries, especially in South Asia, continue to view the Quad as an "exclusive military alliance." IPMSC’s efficacy will depend on securing strategic buy-in from regional countries.