OCTOBER 22, 2025 – The Japan Maritime Self-Defense Force (JMSDF), the U.S. Marine Corps, and U.S. Navy begin the multilateral exercise Annual Exercise (ANNUALEX) 2025 in the Philippine Sea, October 20, 2025.
This year’s ANNUALEX focuses on enhancing the Japan and U.S. bilateral alliance within a multilateral context through maritime communication tactics, anti-submarine warfare operations, air warfare operations, replenishment-at-sea, and more. JMSDF Izumo-class helicopter-capable, anti-submarine warfare destroyer JS Kaga (DDH 184) leads the JMSDF participation in this year’s ANNUALEX.
Held every two years, ANNUALEX is led by the JMSDF to provide an opportunity to refine and build upon existing combat interoperability capabilities, enhancing readiness across all platforms. This serves as a deterrent against regional instability and aggression.
U.S. participating assets include the U.S. Navy Arleigh Burke-class guided-missile destroyer USS Shoup (DDG 86), Ticonderoga-class guided missile cruiser USS Robert Smalls (CG 62), P-8A Poseidon, Lewis and Clark-class dry cargo ships USNS Amelia Earhart (T-AKE 6), USNS Wally Schirra (T-AKE 8), fleet replenishment oiler USNS Tippecanoe (T-AO 199), a U.S. submarine, and U.S. Marine Corps F-35B Lightning II is assigned to Marine Fighter Attack Squadron (VMFA) 242.
Participating forces will also include the Royal Australian Navy (RAN) and Air Force (RAAF), Royal Canadian Navy (RCN) and Air Force (RCAF), French Navy (FN), and Royal New Zealand Air Force (RNZAF).
The previous ANNUALEX, held in November 2023, featured Carrier Strike Group 1, represented by its flagship Nimitz-class aircraft carrier USS Carl Vinson (CVN 70), during operations in U.S. 7th Fleet.
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.
Story by Lt.j.g. Sarah Merrill
Commander, U.S. 7th Fleet