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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.

More about IBRU
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

IBRU Training Workshops

Since 1996, IBRU has run over 60 professional workshops, training over 1,750 participants from over 123 countries in technical issues in boundary delimitation, recovery, research, and negotiation.

IBRU runs 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, geographical information in boundary-making, and archive research for boundary dispute resolution.

Our 2023 training workshops

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Online Course: Introduction to International Boundaries

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

Find out more
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Borderlines Newsletter 2022

Borderlines provides an update on the activities of IBRU and information on developments in the wider boundary community around the world.

The latest edition
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Milefsky Award

Ray Milefsky has kindly endowed upon IBRU an annual award to honour a leading border practitioner or organisation. Read about the past winners of the Award.

More about the award
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IBRU Maps and Publications

IBRU is a world leader in producing maps, databases, and briefing papers that explore complex and contested international boundaries. In addition to the Arctic Maps series, IBRU has published maps of South Atlantic maritime claims, a database of international river boundaries, and other studies.

Maps and publications

Latest IBRU news

Israel and Lebanon agree to ‘historic’ deal to end maritime dispute

Lebanon and Israel have agreed a deal over a maritime border dispute involving offshore gas fields after years of US-mediated talks.
Israel Lebanon Maritime Aljazeera Map showing disputed area

ICJ rule Columbia must cease activities in the EEZ waters of Nicaragua

A ruling by the International Court of Justice (ICJ) has addressed a dispute between Nicaragua and Colombia over maritime borders which has lasted for many decades.
Image of the Peace Palace in The Hague by E Buxton

Get in Touch

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

Contact Us

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