Question to the Ministry of Defence:

To ask the Secretary of State for Defence, with reference to page 22 of the National Security Strategy 2025, CP 1338, published on 24 June 2025, what the composition is of the Joint Expeditionary Force.

The Joint Expeditionary Force (JEF) is a coalition of ten like-minded NATO nations: Denmark, Estonia, Finland, Iceland, Latvia, Lithuania, Netherlands, Norway, Sweden, and the UK, which acts as Framework Nation.

The JEF is a high-readiness multinational defence framework designed to respond rapidly to crises, particularly in the High North, North Atlantic, and the Baltic Sea Region. It operates flexibly, with no standing force elements, instead drawing national contributions on a case-by-case basis.