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Welcome to IBRU

Since its founding as the International Boundaries Research Unit in 1989, IBRU has been the world’s leading research centre on international boundary making and dispute resolution. Today, IBRU joins work in international boundary law with the geographic study of borders and bordering in the 21st century. 

Through research, consultancy, and training, IBRU facilitates enhanced understanding of border areas, contributes to the peaceful resolution of boundary disputes, and engages with broader geographic questions concerning the changing nature of sovereignty, territory, citizenship, and the political organisation of space. 

IBRU is part of the Geography Department at Durham University.

See our Research
Over 60 training workshops delivered globally in 25 years
1,650 participants trained to date
Participants from over 120 countries involved in our training programmes
Specialised maps and databases including the definitive map of maritime jurisdiction and boundaries in the Arctic region
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IBRU Training Workshops and Courses

We run regular professional training workshops on practical aspects of boundary-making and dispute resolution, including maritime boundary delimitation, negotiating international boundaries, preparing for litigation and arbitration and more.

Our workshops and courses
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Online Course: Introduction to International Boundaries

This online training course provides a simple, contextual overview of international boundaries, covering topics including definition, delimitation and dispute resolution.

Find out more

IBRU Maps and Publications

IBRU has Arctic maps and briefing notes showing maritime jurisdiction and boundaries in the Arctic. We also have maps comparing the maritime jurisdictional claims of Argentina and the UK in the South Atlantic and Southern Oceans.

  • IBRU's Arctic Maps Series

    IBRU's Arctic Maps series identifies areas covered by CLCS recommendations, state submissions, and hypothetical state submissions, as well as other maritime jurisdictional zones north of the Arctic Circle.
  • South Atlantic maritime claims

    The maps available for download from this page illustrate the extent of the jurisdictional claims of Argentina and the UK and highlight the degree of overlap between them.

IBRU's Arctic Maps Series

IBRU's Arctic Maps series identifies areas covered by CLCS recommendations, state submissions, and hypothetical state submissions, as well as other maritime jurisdictional zones north of the Arctic Circle.

South Atlantic maritime claims

The maps available for download from this page illustrate the extent of the jurisdictional claims of Argentina and the UK and highlight the degree of overlap between them.

Latest boundary news

ITLOS Rejects UK claim to the Chagos Islands

The International Tribunal for the Law of the Sea (ITLOS) has affirmed that The Chagos archipelago is part of Mauritius rather than the UK.

Get in Touch

Enquiries about IBRU: Centres for Borders Research should be sent via the email link below.

Contact Us

IBRU 
Department of Geography 
Durham University 
Durham, DH1 3LE 
United Kingdom 
 
Tel: +44 (0)191 334 1965 
Fax: +44 (0)191 334 1962