Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what assessment he has made of the potential merits of increasing the strength of the Joint Expeditionary Force to deter Russian threats in the High North.

The Secretary of State for Defence last met with his Joint Expeditionary Force (JEF) counterparts at the JEF Defence Ministers meeting from 4-5 November 2025 in Bodø, Norway. This was the first JEF Defence Ministers meeting to be held in the High North, demonstrating the JEF’s focus on the region. We are considering dates for the next meeting. Addressing threats in the High North will remain a key focus for discussion at the next JEF Leaders’ Summit, which will be held in Finland in Q1 2026.

While NATO remains the ultimate guarantor of European security, the JEF enhances the collective security and stability of Northern Europe, the High North, and the Baltic Region. It provides, a rapid, adaptable, high-readiness military capability for crisis response, collective defence, and security providing credible, high-readiness responses to hybrid scenarios across all domains, as was demonstrated with Nordic Warden in December 2024, the rapid response to the damage of the Esstlink-2 power cable in the Baltic Sea.

As Framework Nation for the JEF, the UK is constantly working to improve readiness and coordination amongst JEF members. Exercise TARASSIS, the JEF’s key activity in 2025 and the largest JEF activity in its 11-year history, was held across the High North and Baltic regions through September and October 2025. JEF activity will continue to develop in the region over the next year with an ambitious series of exercises designed to build upon TARASSIS and further strengthen the interoperability and effectiveness of the JEF.