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The UK is acceding to the Agreement on Defence Export Controls (the “Defence Agreement”), joining France, Germany and Spain (the “Contracting Parties”) in a multilateral framework designed to streamline export licensing for cross-border defence activities.
1 – The Defence Agreement provides more predictable rules aimed at reducing the risk of inconsistent export control licensing decisions, thus offering greater certainty for exporters in the UK, France, Germany and Spain and to their clients abroad.
2 – A Contracting Party can only oppose an export licence application where the export compromises its direct interests or national security.
3 – This simplification applies to cross-border activities involving (i) intergovernmental programs and their subsystems, (ii) industrial cooperations, and (iii) defence-related products that integrate a defence product sourced from another contracting party.
4 – The Defence Agreement includes a ‘de minimis’ rule under which a Contracting Party is required to grant an export authorisation where a controlled component originating from that party is integrated into a final product and accounts for less than 20% of the final system’s value.
5 – Although not as broad and advanced as the Australia-UK-US security pact (“AUKUS”), this agreement is a step towards deeper European defence integration and a more predictable framework for cross-border cooperation between EU and non-EU countries.
6 – The Defence Agreement is open to accession by other EU and EFTA ("European Free Trade Association") countries upon approval by Contracting Parties.
7 – Implementation of the Defence Agreement by the UK authorities is expected to take place “in due course”.
On 11 December 2025, the UK announced that it was acceding to the Agreement on Defence Export Controls (the “Defence Agreement”), joining France, Germany and Spain (the “Contracting Parties”) in a multilateral framework designed to streamline export licensing for collaborative defence programmes1.
This Defence Agreement, which was initially signed by France, Germany and Spain in 2021, aims to improve the efficiency, predictability and consistency of multi-country defence-related projects and products by ensuring that Contracting Parties involved in earlier stages of manufacturing or development may prevent the export of a product only in exceptional circumstances. The UK joining the Defence Agreement is an additional step towards deepening the integration of European defence and comes in the context of a wider push for rearmament by European countries.
Therefore, the Defence Agreement is of significance not only for companies carrying out activities in the UK, France, Germany or Spain, but also for their clients, as it provides greater certainty regarding the delivery of defence-related products to third countries.
This article provides an overview of what the UK's accession could mean for European defence suppliers that export or import defence‑related items with a UK nexus. It summarises the structure and objectives of the Defence Agreement, and explains the implications for companies involved in cross-border defence activities between the UK, France, Germany and Spain.
The Defence Agreement was initially signed by France, Germany and Spain on 17 September 2021. This agreement builds on a previous bilateral agreement between France and Germany signed in 20192, which itself was a successor to the “Debré-Schmidt”3 agreement dated from 1971.
Pursuant to the Debré-Schmidt agreement, neither France nor Germany were allowed to veto the export of an in-scope defence product by the other country. In practice, these agreements did not provide a strong enough framework, leaving both countries with concerns and resulting in decisions to veto exports of military items that incorporated components or involved participation from the other country. This prompted the need for a revised version of the framework in 2019. The 2019 bilateral agreement required amending when Spain expressed its interest in joining the framework, which was done in 2021 to allow for the accession by third countries.
The key objective of the 2021 Defence Agreement is to provide clarity, predictable rules and a “reliable agenda” in a field where exports to third countries are considered economically necessary by industry operators (particularly when scale is required and public purchases in the home country are low), yet also viewed as potential threats to the national security of the involved countries. The agreement lays down a framework that tries to balance both needs: those of the exporters of the final products and those of the countries involved in the earlier stages of manufacturing or developing the final products.
In all the scenarios covered, the Defence Agreement creates a “presumption in favour of approving the export provided it is compatible with international law”4.
Article 1 of the Defence Agreement deals with exports resulting from an intergovernmental collaboration.
A simplified process applies where defence products have been incorporated into the “armament system” of a manufacturer in another Contracting Party. Exports of armament systems integrating components from Contracting Parties cannot be opposed except where such exports may compromise a Contracting Party’s direct interests or national security. Objections must be raised within two months, and high-level consultations shall be organised immediately to share analyses and find appropriate solutions.
For an export to qualify, it must occur in the context of an “industrial cooperation”. The Contracting Parties are responsible for determining project eligibility. Annex 1 sets out a two‑stage process: recognition of a project as qualifying under the Defence Agreement, followed by simplified export authorisation.
In the context of Article 2, an “armament system” means “any item on the Common Military List of the European Union”.
This article deals with all the other exports of defence related products that are not covered by Articles 1 or 2.
Practically, where a Contracting Party’s component integrated into a final product represent less than 20% of the final system’s value, they must grant export authorisations for the component without delay.
The Export Control Joint Unit (ECJU) is set to publish guidance for exporters on the Defence Agreement and on how to submit licence applications for consideration against the relevant articles. This will include a template for an integration certificate to support exports under Article 3.
The ECJU has indicated, without providing a timeline, that an open general export licence (OGEL) will be issued to further simplify exports under Article 3.
Information sharing is subject to existing bilateral security agreements. Without such agreements, classified data cannot be exchanged.
The Defence Agreement allows for the accession by other EU, EFTA and ‘Farnborough’ countries5.
Authored by Aline Doussin, Pierre Estrabaud, Kate Mosley, and Orpheas Nikopoulos.
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