MANILA, Philippines — The Philippine Navy is set to deploy four Triton autonomous underwater and surface drones as part of ongoing efforts to protect subsea cables and monitor incursions by Chinese vessels and maritime militia in disputed features within the West Philippine Sea.
The U.S. Embassy in the Philippines announced this week the transfer of the AUSVs worth 754 million pesos ($13 million) and produced by American firm Ocean Aero to the sea forces to enhance capabilities “to detect and respond to maritime challenges and illegal maritime activities.”
The transfer comes after the Armed Forces of the Philippines revealed that China discreetly deployed a 6×6 meter floating platform equipped with an antenna in late May at the southeastern portion of Scarborough Shoal, a fishing lagoon within the Philippines’ exclusive economic zone.
Philippine officials claim the platform was being used to illegally gather Philippine maritime data and could serve as a prelude for China’s island-building activities. Philippine officials lodged diplomatic protests, and China removed the structure last week.
Solar-powered Tritons are capable of autonomous navigation both on the surface and underwater and can support a diverse array of missions such as intelligence, surveillance, reconnaissance (ISR), anti-submarine warfare, maritime strike, and mine countermeasures.
The drones can be fitted with video cameras, thermal imaging and sonars, and may be deployed from shore, vessels, or aircraft. It can dive down to 100 meters and remain underwater for 10 days. It can also conduct surface patrols for up to 30 days.
In Ocean Aero’s headquarters in Gulfport, Mississippi, the AUSVs are mobilized to protect subsea cables from sabotage, and the company has pitched the AUSVs for U.S. Navy mine-clearing in the Strait of Hormuz.
Officials told Defense News the AUSVs were shown to the Navy during the recent iteration of Exercise Balikatan and are among a series of systems and platforms the U.S. had planned to transfer to the Philippines to boost military capabilities.
The Tritons will also boost existing efforts to monitor subsea cables and gas pipelines, officials said.
“The ability to monitor and respond to maritime challenges — illegal fishing, gray zone activities, and threats to freedom of navigation — requires persistent, long-endurance awareness that no single ship or aircraft can provide alone. The Triton fills that gap by expanding the capabilities of the Philippine Navy into critical waterways,” U.S. Embassy Chargé d’Affaires Bridgette Walker said in a statement.
The drones are included in the Philippines-U.S. Security Sector Assistance Roadmap, a multi-year agreement to ease the acquisition, transfer, and sharing of equipment like radars and unmanned systems to strengthen maritime surveillance.
Last December, the U.S. Senate earmarked $2.5 billion for Philippine military modernization to be disbursed from 2026 to 2030.
Leilani Chavez is an Asia correspondent for Defense News. Her reporting expertise is in East Asian politics, development projects, environmental issues and security.
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