Britain doubles troop numbers in Norway

The UK will double the number of British troops deployed to Norway over the next three years, increasing from 1,000 to 2,000 personnel, as ministers link the move to rising Russian military activity in the Arctic and High North.

In a Ministry of Defence announcement, Defence Secretary John Healey said demands on defence in the region are increasing and described Russia as the greatest threat to Arctic and High North security since the Cold War.

“Demands on defence are rising, and Russia poses the greatest threat to Arctic and High North security that we have seen since the Cold War. We see Putin rapidly re-establishing military presence in the region, including reopening old Cold War bases,” Healey said.

The announcement connects the UK increase in Norway with NATO’s newly launched Arctic Sentry initiative, which was unveiled just hours earlier by NATO Secretary General Mark Rutte. Healey is expected to confirm that UK Armed Forces will play a role in the mission, with “detailed military planning” underway at NATO, ahead of the NATO Defence Ministers meeting in Brussels on 12 February.

Alongside the NATO track, the UK-led Joint Expeditionary Force (JEF) is preparing a major High North exercise in 2026. The MoD said Exercise Lion Protector, scheduled for September 2026, will deploy air, land and maritime forces from JEF nations across Iceland, the Danish Straits and Norway.

According to the announcement, the exercise will train forces to protect critical national infrastructure from attack and sabotage and strengthen joint command and control, with hundreds of personnel deploying across the operating area.

The UK’s 2026 activity begins earlier, with the MoD stating that 1,500 Royal Marine Commandos will deploy to Norway for NATO Exercise Cold Response in March, described as a multinational exercise across Norway, Finland and Sweden focused on operating in strategically important terrain including fjords and mountainous areas.

Healey framed the overall posture as a combined deterrence and readiness message: “The UK is stepping up to protect the Arctic and High North, doubling the number of troops we have in Norway and scaling up joint exercises with NATO allies,” he said.

“Cold Response and Lion Protector will this year see thousands of troops deploy across the Arctic and North Atlantic, with the UK leading the way. We train together, we deter together, and if necessary, we will fight together.”

The MoD also pointed to closer bilateral defence cooperation with Norway, referencing a Lunna House Agreement signed in December. The statement said the agreement will see the UK and Norway “jointly operate a fleet of submarine-hunting Type 26 warships,” expand joint Arctic training, and pre-position British military equipment in Norway to improve readiness for future crises.

Contextually, the UK decision lands as NATO sharpens its own northern focus. In his pre-ministerial press conference in Brussels, Rutte said the Arctic and High North are becoming more important to collective security and cited increased Russian activity and growing Chinese interest. He described Arctic Sentry as an effort to bring NATO and Allied activities in the High North into one operational approach, initially tying together large-scale exercises such as Denmark’s Arctic Endurance and Norway’s Cold Response.

For the UK, the MoD is presenting the troop uplift, JEF activity and NATO Arctic Sentry planning as one package: more presence, more exercising, and a more formal operational framework for the High North.