An independent educational charity

Strength in unity.
Peace through dialogue.

Advancing public understanding of international security, diplomacy and the values that unite the Atlantic community.

1949The North Atlantic Treaty began a new era of cooperation

Our purpose

Building understanding.
Strengthening peace.

The Atlantic Council of the United Kingdom is an independent, non-governmental charity dedicated to education, dialogue and international order.

We promote the principles of peace and cooperation enshrined in the North Atlantic Treaty. Through expert analysis, public events and an inclusive community, we help people understand the security questions shaping the United Kingdom and the wider world.

Explore our policy priorities

Working at the heart of the transatlantic conversation

NATOUK GOVERNMENTPOLICY EXPERTSNEXT GENERATION

Policy focus

The issues shaping
our shared future

Independent thinking and informed discussion across the most urgent questions in global affairs.

01

Security & Defence

Strengthening national security, defence policy and resilience in a changing threat landscape.

02

International Politics

Analysing global affairs and creating space for serious, constructive public dialogue.

03

Global Partnerships

Building stronger alliances and strategic relationships across the Atlantic community.

Atlantic Council discussion

When Does an Attack on NATO Become an Act of War?

Michael Reynolds and Russell examine when a drone strike, cyberattack or act of hybrid warfare could trigger NATO’s collective-defence commitment—and whether its members are prepared to respond without causing uncontrolled escalation.

Atlantic Council UK community eventIdeas become stronger
when they are shared.

A broad church

Dialogue without boundaries

Lasting peace depends on an informed public and the confidence to hear different points of view.

We bring together established experts, emerging voices and people of every generation. By connecting government, civil society, business and academia, we make international affairs more accessible and encourage active participation in diplomacy and foreign policy.

“Democracy, human rights and the rule of law are not simply ideals. They are values we must actively protect.”

How we create impact

From understanding
to action.

Our work connects informed thinking with the people and institutions shaping the future of the Atlantic community.

01

Research & analysis

Clear, independent perspectives on security, diplomacy and international affairs — making complex issues accessible to a wider public.

02

Events & convening

Thoughtful conversations that bring established leaders, emerging voices and engaged citizens into the same room.

03

Education & opportunity

Helping the next generation develop the knowledge, networks and confidence to participate in international affairs.

New book launch

By Michael Reynolds · Senior Research Fellow

Instruments of Peacemaking 1918–1941

The Failure of Diplomacy

Michael Reynolds explores the diplomacy and dispute-resolution mechanisms used by statesmen and jurists during one of modern history’s most turbulent periods. The book follows Instruments of Peacemaking 1870–1914, examining pivotal crises settled through international arbitration and diplomacy—and the degree to which those efforts succeeded.

View book details
Members of the Atlantic Council UK community

Our principles

Serious ideas.
Open minds.

01

Integrity

Independent thinking, honest analysis and transparent discussion.

02

Inclusion

A genuinely broad community spanning backgrounds, fields and generations.

03

Constructive dialogue

Disagreement approached with curiosity, evidence and mutual respect.

04

Public service

Knowledge shared in pursuit of peace, security and the common good.

Get involved

Find your place in
the conversation.

01

Supporter

Free

  • ACUK newsletter
  • News and event updates
  • Open community invitations
Sign up
03

Research Fellow

£3 / month

  • All member benefits
  • Publish papers with ACUK
  • Develop your policy profile
Apply to join

Join ACUK

Your voice belongs in the room.

Whether you are taking your first interest in international affairs or have spent a career shaping them, there is a place for you in our community.

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Community registrationACUK / 2026
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