Question to the Ministry of Defence:

To ask the Secretary of State for Defence, what formal agreement between the UK and France stipulates the chain-of-command within the coalition of the willing.

The Multi-National Force-Ukraine is a combined UK-France lead, cohering UK-French co-leadership through the basis of the Combined Joint Force, formally the Combined Joint Expeditionary Force and renamed at the UK-France Summit in July 2025.

The CJEF Concept of Operations provides a collaboratively shaped set of pre-agreed processes and procedures for planning and managing operations undertaken by the UK and French militaries. The structure offers balance between the two militaries for mutual decision-making within the policy/military space.