State-to-State disputes

Our lawyers have represented State clients in disputes before a variety of international courts and tribunals, including the International Court of Justice (ICJ), the Permanent Court of Arbitration (PCA), the European Court of Human Rights (ECHR), the Court of Justice of the European Union (CJEU), the WTO’s Dispute Settlement Body, and in the first ever UNCLOS Annex VII maritime boundary arbitration.  We have represented State clients in a range of public international law cases before domestic courts.  Our State clients have enjoyed a positive outcome (win or positive settlement) in all concluded State-to-State and non-investment disputes in which we have acted.

A number of our State representations have involved disputes over territorial sovereignty, the delimitation of land and maritime boundaries and transboundary pollution.  We are ideally placed to assist with the management, coordination and advocacy of such complex, multifaceted and sensitive cases.

Highlights of our lawyers’ experience in State-to-State disputes include:

  • advising a Caribbean State in the first ever maritime delimitation arbitration under the United Nations Convention on the Law of the Sea
  • advising a Latin American State in a case before the ICJ arising out of allegations of transboundary pollution
  • advising an Asian State in a case before the ICJ relating to sovereignty over small island features
  • advising a north European State in a number of proceedings before the ECHR and European Court of Justice
  • advising a Balkan State in English court litigation involving the dissolution of the former Yugoslavia
  • advising an Asian State in an ad hoc arbitration with a neighbouring State, brought under the aegis of the PCA