Earlier this afternoon the ICJ delivered its Chagos advisory opinion. Briefly, the Court found that the separation of the Chagos archipelago from the British colony of Mauritius was contrary to the right to self-determination and that accordingly the decolonization of Mauritius was not completed in conformity with international law. As a consequence, the Court found that the UK’s continuing administration of the archipelago, which includes the largest US naval base in the Indian Ocean, Diego Garcia, is a continuing internationally wrongful act, which the UK was under an obligation to cease as soon as possible. The Court was almost unanimous – its decision not to exercise discretion and decline giving an opinion was made by 12 votes to 1, while its findings on the merits were made by 13 votes to 1 (Judge Donoghue dissenting). The AO and the various separate opinions is available here.
Here are some key takeaways.