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Following the UK's decision to leave the European Union, RUSI publishes a series of briefings analysing the implications for international security and the policy options ahead for the UK.

Prime Minister Outlines Vision for International Cooperation
Commentary, 22 February 2021
Peter Ricketts
In a well-crafted speech to the Munich Security Conference, Boris Johnson went beyond ritual repetitions of ‘Global Britain’ slogans.
Tags: UK Integrated Review 2021, Brexit, UK
The Future of UK–EU Security Cooperation
Commentary, 18 January 2021
Julian King and John Scarlett
The agreement governing future relations between the UK and the EU has addressed only some of the serious questions about future security cooperation. Many challenges lie ahead, and goodwill, as well as attention to detail will be required by both sides.
Tags: UK Integrated Review 2021, Brexit, UK, National Security, Europe
"Read Neil Melvin and Malcolm Chalmers on 'The United Kingdom and the Future of European Security' "
European Security After Brexit
In The News, 17 November 2020 Tags: Brexit
Biden in the White House: A New Lease of Life for the West?
Commentary, 10 November 2020
Malcolm Chalmers
The return of a more predictable US administration will provide huge relief to America’s allies. But what came to pass over the past four years will not be easily forgotten.
Tags: United States, Brexit, UK, Europe
Brexit’s Implications for UK Defence Industrial Cooperation with Europe
Commentary, 5 November 2020
Trevor Taylor
A consistent feature of official UK positions after Brexit was enthusiasm for continued UK–Europe cooperation on defence and security matters. However, difficulties in the talks endanger both intergovernmental activities in this domain and the future of UK defence industrial capability.
Tags: Defence, Industries and Society, Equipment and Acquisitions, Brexit, UK, Europe
What Do the Germans Make of the UK?
Commentary, 20 August 2020
Sir Paul Lever
What are the realities and prospects of the UK’s relations with continental Europe’s most significant partner?
Tags: Germany, Brexit, UKPages

Prime Minister Outlines Vision for International Cooperation
Commentary, 22 February 2021Peter Ricketts
In a well-crafted speech to the Munich Security Conference, Boris Johnson went beyond ritual repetitions of ‘Global Britain’ slogans.
UK Integrated Review 2021, Brexit, UK
The Future of UK–EU Security Cooperation
Commentary, 18 January 2021Julian King and John Scarlett
The agreement governing future relations between the UK and the EU has addressed only some of the serious questions about future security cooperation. Many challenges lie ahead, and goodwill, as well as attention to detail will be required by both sides.
UK Integrated Review 2021, Brexit, UK, National Security, Europe
Biden in the White House: A New Lease of Life for the West?
Commentary, 10 November 2020Malcolm Chalmers
The return of a more predictable US administration will provide huge relief to America’s allies. But what came to pass over the past four years will not be easily forgotten.
United States, Brexit, UK, Europe
Brexit’s Implications for UK Defence Industrial Cooperation with Europe
Commentary, 5 November 2020Trevor Taylor
A consistent feature of official UK positions after Brexit was enthusiasm for continued UK–Europe cooperation on defence and security matters. However, difficulties in the talks endanger both intergovernmental activities in this domain and the future of UK defence industrial capability.
Defence, Industries and Society, Equipment and Acquisitions, Brexit, UK, Europe
What Do the Germans Make of the UK?
Commentary, 20 August 2020Sir Paul Lever
What are the realities and prospects of the UK’s relations with continental Europe’s most significant partner?
Germany, Brexit, UKPages

Brexit in 2018
Multimedia, 4 January 2018RUSI Deputy Director General Professor Malcolm Chalmers discusses the prospects for Brexit in 2018.
Tags: Brexit, Europe
Anand Menon: Britain's Place in the World After Brexit
Multimedia, 26 January 2017Theresa May's visit to meet Donald Trump signals a new emphasis by the the UK government to seek favourable trade deals with the United States as it prepares to leave the European Union. Dr Jonathan...
Tags: United States, Brexit, UK, Europe
Brexit Decision: What Next for the UK?
Multimedia, 24 June 2016Professor Malcolm Chalmers, Deputy Director General of the Royal United Services Institute gives his reaction to the Brexit decision and what this means for the UK and her place in the world.
Tags: Brexit, UK, Europe
Designing Sanctions After Brexit: Recommendations on the Future of UK Sanctions Policy
Occasional Papers, 19 September 2019Isabella Chase, Emil Dall and Tom Keatinge
This Occasional Paper offers recommendations adapted from initial discussions by the RUSI Task Force on the Future of UK Sanctions Policy regarding what UK sanctions could look like after Brexit.
Centre for Financial Crime and Security Studies, UK Counter-terrorism, UK Integrated Review 2021, Occasional Papers, AML/CTF, European Union, Global Strategy and Commitments, Brexit, Security Policy, UK, Law and Ethics, Organised Crime
Rethinking Strategy
RUSI Journal, 25 July 2019Jeremy Black
Responsibility for strategy has long been a source of tension between politicians and the military.
RUSI Journal, Brexit, UK
Brexit and Cyber Security
RUSI Journal, 25 July 2019Tim Stevens and Kevin O'Brien
The UK will need to rely on new methods of cooperation with its European neighbours.
Cyber, RUSI Journal, Brexit, UK
The Good Friday Agreement and Brexit
RUSI Newsbrief, 18 January 2019Sir Paul Lever
Brexit negotiations on the Northern Ireland border question reveal diverging views on the future of the Good Friday Agreement.
RUSI Newsbrief, European Union, Brexit, UK
Peacekeeping After Brexit
Conference Reports, 12 December 2018David Curran, Georgina Holmes and Philip Cunliffe
On 7 September 2018, the British International Studies Association (BISA) Peacekeeping and Peacebuilding Working Group, in partnership with RUSI, held a roundtable on the future of the UK's relations...
RUSI International, Terrorism and Conflict, United Nations, European Union, Brexit, Conference Reports, UK, Peacekeeping and Peacebuilding, EuropePages

RUSI UNDER-35s FORUM MEMBERS ONLY - Brexit and the European Elections
Events, 10 April 2017This event will explore the impact of the upcoming European elections on the UK, and what the results might mean for British politics following the invocation of Article 50.
Germany, European Union, Brexit, France, UK, Europe
The Defence Implications of Brexit
Events, 14 March 2017This conference explored how the UK and EU can maintain a long-standing defence and security relationship after Brexit.
Brexit, UK, Defence Policy, UK Defence, Europe
The View from Paris: Reflections on a Changing Strategic Environment
Events, 22 February 2017M. Philippe Errera, DG for International Relations and Strategy (DGRIS) at the French Ministry of Defence (MOD), will give his thoughts on the French approach to defence and security in the face of ‘...
RUSI International, Brexit, France, Europe
"Read Neil Melvin and Malcolm Chalmers on 'The United Kingdom and the Future of European Security'"
European Security After Brexit
In The News, 17 November 2020 Tags: Brexit
"Read Neil Melvin and Malcolm Chalmers on 'The United Kingdom and the Future of European Security'"
European Security After Brexit
In The News, 17 November 2020 Tags: Brexit
"In this episode of Dollar & Sense, David Dollar is joined by Tom Keatinge to discuss the ramifications Brexit will have on the United Kingdom’s use of financial sanctions and regulation of financial crime."
How will the UK use financial sanctions in a post-Brexit world?
In The News, 18 February 2020 Tags: Centre for Financial Crime and Security Studies, AML/CTF, Brexit, UK, Europe
"On the eve of Britain’s exit from the European Union, the country is redefining its international approach. The United Kingdom has already taken action by becoming involved in new economic commitments, new trade agreements in Commonwealth countries but also from a diplomatic point of view in West Africa. While development aid remains a focal point of its intervention in Africa, it risks being undermined by the Brexit and its economic consequences. However, the United Kingdom is now gaining more freedom in its projects."
The UK’s policy towards Africa post-Brexit
In The News, 24 May 2019 Tags: RUSI International, Brexit, UK, Europe, Africa
"“A new government – or even a new general election – would solve nothing unless it also led to a new Brexit policy, or to no Brexit,” Professor Malcolm Chalmers, Deputy Director General of Royal United Services Institute, told VICE News."
Theresa May Suffered Another Disastrous Brexit Defeat And No One Knows What To Do Next
In The News, 13 March 2019 Tags: Brexit, UK, Europe
Unintended Consequences: Humanitarianism and CTF Compliance
The Imperfect Equilibrium of Russian Civil–Military Relations
A Post Mortem of a Disintegrated Review