Japan, the Philippines and the U.S. Conduct Maritime Cooperative Activity

14 September 2025

From U.S. Indo-Pacific Command

The combined armed and defense forces of Japan, the Philippines and the United States, demonstrating a collective commitment to strengthen regional and international cooperation in support of a free and open Indo-Pacific, conducted a Multilateral Maritime Cooperative Activity (MCA) within the Philippines’ Exclusive Economic Zone, Sept. 11-13, 2025.

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SUBIC BAY, Philippines (Sep. 11, 2025)—Sailors aboard the Arleigh Burke-class guided-missile destroyer USS John Finn (DDG 113) teach Sailors from the Philippine Navy and Cmdr. Noriyuki Kawahata, Assistant Defense Attaché of Japan to the Philippines, about flight operations on the fo’c’sle during a subject matter exchange as part of multi-lateral Maritime Cooperative Activity in Subic Bay, Philippines, Sep. 11. John Finn is forward-deployed and assigned to Destroyer Squadron (DESRON) 15, the Navy’s largest DESRON and the U.S. 7th Fleet’s principal surface force. (U.S. Navy photo by Mass Communication Specialist 2nd Class Alexandria Esteban)

These combined maritime capabilities build upon previous MCAs and our continuous operations together, which strengthen the interoperability of our armed and defense forces doctrines, tactics, techniques, and procedures.

MCAs are conducted in a manner consistent with international law and with due regard to the safety, navigational rights, and freedoms of all nations.

SUBIC BAY, Philippines (Sep. 12, 2025)—Sailors aboard the Arleigh Burke-class guided-missile destroyer USS John Finn (DDG 113) handle a line on the flight deck during a sea and anchor detail during a multi-lateral Maritime Cooperative Activity in Subic Bay, Philippines, Sep. 12. John Finn is forward-deployed and assigned to Destroyer Squadron (DESRON) 15, the Navy’s largest DESRON and the U.S. 7th Fleet’s principal surface force. (U.S. Navy photo by Mass Communication Specialist 2nd Class Alexandria Esteban)

SUBIC BAY, Philippines (Sep. 11, 2025)—Lt. Cmdr. Charles Lloyd, from Long Island, New York, teaches Sailors from the Philippine Navy and Cmdr. Noriyuki Kawahata, Assistant Defense Attaché of Japan to the Philippines, about flight operations in the pilothouse aboard the Arleigh Burke-class guided-missile destroyer USS John Finn (DDG 113) during a subject matter exchange as part of the multi-lateral Maritime Cooperative Activity in Subic Bay, Philippines, Sep. 11. John Finn is forward-deployed and assigned to Destroyer Squadron (DESRON) 15, the Navy’s largest DESRON and the U.S. 7th Fleet’s principal surface force. (U.S. Navy photo by Mass Communication Specialist 2nd Class Alexandria Esteban)

SOUTH CHINA SEA (Sep. 12, 2025)—The Arleigh Burke-class guided-missile destroyer USS John Finn (DDG 113) takes station with the Jose Rizal-class frigate BRP Jose Rizal (FF-150) during a mulit-lateral Maritime Cooperative Activity in the South China Sea, Sep. 12. John Finn is forward-deployed and assigned to Destroyer Squadron (DESRON) 15, the Navy’s largest DESRON and the U.S. 7th Fleet’s principal surface force. (U.S. Navy photo by Mass Communication Specialist 2nd Class Alexandria Esteban)

Participating units included the Ōsumi-class amphibious tank landing ship JS Osumi (LST-4001), the Jose Rizal-class guided-missile frigate BRP Jose Rizal (FF 150), the Arleigh Burke-class guided-missile destroyer USS John Finn (DDG 113) and a U.S. Navy P-8A Poseidon maritime patrol and reconnaissance aircraft assigned to Patrol Squadron (VP) 9.

The U.S., along with our allies and partners, upholds the right to freedom of navigation and overflight and other lawful uses of the sea and international airspace, as well as respect to the maritime rights under international law.

U.S. 7th Fleet is the U.S. Navy's largest forward-deployed numbered fleet and routinely interacts and operates with allies and partners in preserving a free and open Indo-Pacific region.