As part of the international deployment “Highmast,” the Australian destroyer HMAS Sydney was officially integrated into Carrier Strike Group 25 (CSG 25), a strike group led by the British aircraft carrier HMS Prince of Wales, thus strengthening a key strategic partnership between the Royal Australian Navy and the United Kingdom’s Royal Navy.
The rendezvous took place at sea, as the naval group headed toward Australia to participate in Exercise Talisman Sabre, one of the largest multinational military exercises in the Indo-Pacific region. In this context, the strike group commander, Commodore James Blackmore of the Royal Navy, visited HMAS Sydney, toured its main facilities, and exchanged views with its commanding officer, Ben Weller, and members of the crew.

“It was a great opportunity to strengthen our long-standing relationship with the Royal Navy, as they’re not just our oldest relationship but they remain one of our closest partners,” said Commander Weller. “Australia and the United Kingdom share a partnership that reflects a deep mutual understanding and shared strategic interest.”
During the visit, Commodore Blackmore was given a first-hand look at the bridge, the combat information center, the platform control room, the flight hangar, and other key areas of the destroyer. As a well-received gesture of courtesy, he also visited the galley and personally thanked the chefs for lunch, which featured distinctly Australian dishes such as surf and turf, watermelon salad, and tiramisu.
As a symbolic farewell gift, the crew of HMAS Sydney presented Commodore Blackmore with a cricket bat—a traditional gesture that reinforces the camaraderie between the two navies.

Exercises with allies and regional presence
HMAS Sydney’s integration into the British strike group coincides with a broader regional deployment that includes ships from Canada, New Zealand, Norway, and Spain, all operating under the umbrella of Operation Highmast. In this context, the Australian vessel also conducted joint maneuvers with the Spanish frigate Méndez Núñez (F-104), a sister ship in design and construction, during their transit toward the port of Darwin in northern Australia.
Both ships carried out simultaneous replenishment exercises with the British vessel Tidespring, as well as a coordinated surface firing drill. A cross-deck crew exchange also took place to share technical and operational experiences, enhancing interoperability among allied naval forces.
In Darwin, the Spanish frigate was visited by the Ambassador of Spain to Australia, Esther Monterrubio Villar, along with officials from the Northern Territory and defense representatives. This institutional stop reaffirmed the commitment of European naval forces to Indo-Pacific stability.

Strategic projection in the Indo-Pacific
HMAS Sydney’s incorporation into CSG 25 marks a new step in Australia’s strategy to strengthen alliances with key partners while projecting its deterrence and response capabilities in an increasingly complex geopolitical environment. The joint operation with HMS Prince of Wales and other allied vessels allows Australia to demonstrate its interoperability with major naval powers and its readiness to contribute actively to global maritime security.
Under the framework of Exercise Talisman Sabre, and in collaboration with leading naval forces from both the North Atlantic and the Pacific, Australia reinforces its role as a central actor in the Indo-Pacific defense architecture.
Images courtesy of the Australian Department of Defence and the United Kingdom Royal Navy.
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