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UK Prime Minister Keir Starmer and French President Emmanuel Macron Alamy Stock Photo

UK and France to declare plans to work together on nuclear deterrents to defend Europe

A declaration to be signed tomorrow will state that the respective deterrents of both countries “can be co-ordinated”.

THE UK AND France intend to declare plans to co-ordinate their nuclear deterrents if necessary and to jointly respond to any “extreme threat to Europe”.

A declaration, due to be signed tomorrow, will state that the respective deterrents of both countries remain independent “but can be co-ordinated, and that there is no extreme threat to Europe that would not prompt a response by both nations”, the UK government and French presidency said this evening.

French President Emmanuel Macron will sign the agreement tomorrow as he wraps up his three-day state visit to the UK with a bilateral summit, where the allies will “reboot” defence ties with a focus on joint missile development and nuclear co-operation.

Macron and UK Prime Minister Keir Starmer will co-host the London summit, with the two sides also expected to discuss maintaining support for Ukraine and curbing undocumented cross-Channel immigration.

Ahead of the gathering, which follows two days of varied events spanning pomp and politics, trade and culture, France and the UK announced their “defence relationship” will be “refreshed”.

It will see London and Paris order more Storm Shadow cruise missiles — long-range, air-launched weapons jointly developed by the two countries and called SCALP by the French — while stepping up work on a replacement system.

The missiles have been shipped to Ukraine in significant numbers in recent years to help it in its war with Russia.

The new partnerships herald a new “Entente Industrielle” making “defence an engine for growth”, said the UK’s Ministry of Defence.

“As close partners and Nato allies, the UK and France have a deep history of defence collaboration and today’s agreements take our partnership to the next level,” Starmer said in the statement.

Starmer and Macron will also dial into a meeting tomorrow of the so-called “coalition of the willing” on Ukraine, a group of countries backing the nation.

© AFP 2025

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