Under grey Arctic skies, the roar of an F-35B Lightning launching from the deck of HMS Prince of Wales has become a defining image of a summer that saw the Royal Navy take command of one of NATO’s most significant maritime activities in a generation.
Flying under NATO command, the UK Carrier Strike Group (CSG) has spent recent weeks proving that Britain remains ready, willing and able to defend the Alliance’s northern flank, in some of the most unforgiving waters on Earth.
A First for NATO in the High North
The UK CSG, led by the 65,000-tonne flagship HMS Prince of Wales, took charge of Exercise Neptune Strike 26-3, a NATO enhanced Vigilance Activity (eVA) that ran from 17 to 23 July.
Directed by NATO’s Naval Striking and Support Forces (STRIKFORNATO), headquartered in Oeiras, Portugal, the activity marked the first time the recurring Neptune Strike series had ever expanded into the High North and North Atlantic — forming part of the wider Arctic Sentry initiative established earlier this year and led by Joint Force Command Norfolk.
It was a moment of genuine strategic significance. Previous iterations of Neptune Strike had concentrated on the Western and Central Mediterranean; this time, the Alliance turned its attention north, to the icy approaches that have defined transatlantic security since the Cold War.
Britain’s carrier strike group operated alongside Spain’s Expeditionary Strike Group, led by the flagship Castilla, with the two forces supported by contributions from 14 Allied nations: including Denmark, Estonia, Finland, France, Greece, Iceland, Italy, Norway, Poland, Sweden and the United States, together with NATO’s Intelligence, Surveillance and Reconnaissance Force.
Joining HMS Prince of Wales under UK CSG command for the activity were the Type 45 destroyer HMS Duncan, the Type 23 frigate HMS Somerset, a French Navy destroyer, and the Royal Fleet Auxiliary support vessel RFA Tidespring — a truly multinational task group operating as one integrated fighting force.
Commodore Donald Mackinnon, Assistant Chief of Staff of Operations at NATO Joint Force Command Norfolk, said Neptune Strike 26-3 demonstrated the Alliance’s ability to integrate maritime, air, land and multinational forces across one of its most strategically significant regions, strengthening readiness and reinforcing interoperability among Allies.
Britain’s Contribution to Collective Defence
The exercise showcased the full weight of British naval airpower. Chiefs of the flight deck aboard HMS Prince of Wales choreographed round-the-clock launches of F-35B Lightning stealth fighters, while the carrier air group’s Merlin and Wildcat helicopters supported surface and sub-surface operations across the task group. Together, the ships of the UK CSG rehearsed complex multi-domain scenarios, blending maritime strike capability with air and undersea operations in conditions that few nations are equipped to master.
The activity forms part of Operation Firecrest, the Royal Navy’s 2026 deployment designed to demonstrate the UK’s commitment to delivering advanced warfighting capability to both NATO and the Joint Expeditionary Force (JEF). Having now completed Phase 1 of Operation Firecrest — a deployment that took the task group through the Arctic, the High North and the wider Euro-Atlantic region — HMS Prince of Wales and HMS Duncan have returned home to Portsmouth, with the mission set to resume in northern European waters this autumn.
For the Royal Navy, the deployment was a clear demonstration of Britain’s enduring commitment to the security of NATO’s northern flank — a region of growing strategic importance as Arctic sea lanes open and traffic through the High North increases. Working alongside NATO Allies and JEF partners in these demanding waters is, for the UK Carrier Strike Group, simply business as usual.
A Statement of Readiness
Taken together with the Strike Group’s earlier exercises this year, Neptune Strike 26-3 stands as a powerful statement: that the United Kingdom, at the helm of one of NATO’s most capable carrier strike groups, can operate — and lead — in one of the most complex and consequential maritime environments on the planet. It is a fitting reflection of the professionalism, readiness and operational excellence of the sailors, soldiers and aviators who make up the UK Carrier Strike Group, and of Britain’s unwavering role in preserving peace, security and cooperation across the Euro-Atlantic and Arctic regions.
Source: UK Ministry of Defence and NATO Joint Force Command Norfolk.
Images: MOD Crown Copyright News / Editorial Licence.
