The Lancaster House Treaties, signed on November 2, 2010, is the cornerstone of a solid defense and security partnership between our two countries. This defense cooperation is based on shared interests and a common determination to defend the international order and multilateralism based on democratic and universal values. It rests on a shared vision and longstanding strategic closeness.
As we mark the 10th anniversary of the Agreement, France fully intends to pursue structuring bilateral defense cooperation in all areas over the coming years: operational, capability, industrial and nuclear. This cooperation will continue on the basis of close dialogue on all issues related to international defense and security, to consolidate the privileged defense relationship it has developed with Great Britain, and to maintain a high level of ambition in the years to come.
The domain of French-English cooperation
Over the past 10 years, thanks to the Lancaster House Agreement, Franco-British cooperation has been strengthened especially in the operational and nuclear fields as well as in terms of military capabilities.
- Regarding its operations, the Combined Joint Expeditionary Force (CJEF) is declared fully operational this year. The CJEF is a binational force that counts up to 10,000 troops, can be deployed in a short time and is capable of conducting high-intensity operations. France and England are also working together on the field. Our two countries are working together on the battlefield, in the Sahel on Operation Barkhane and in the Levant. They also participate in NATO operations on the continent of Europe (Advanced Presence in the Baltic countries, Baltic Air Policing missions).
- In terms of military capability, the Franco-British arms cooperation has been structured in the missile field around the sharing of information relating to research and needs, to identify the axes of our future cooperation and to streamline costs. The joint Future Cruise and Anti-Ship Weapon (FC / ASW) project is at the heart of our shared priority and could enter the assessment phase as early as 2021. The joint Maritime Mine Counter Measures (MMCM) project has also made significant progress since 2015.
- The Franco-British nuclear cooperation as outlined in the Lancaster House Treaties was drawn up primarily by the Teutates Treaty, which aims to share radiographic facilities related to the prevention programs of the two countries and which will continue in the coming years.
Read the joint interview by French Ambassador to London Catherine Colonna and British Ambassador to Paris Ed Llewellyn, first published in la Revue de la Défense nationale on November 2, 2020.