The Liberal Democrats called for a full judicial inquiry into Britain's involvement in CIA black sites and extraordinary rendition since the 11 September attacks. They also called on the UK government to suspend arms sales to Saudi Arabia and condemned the Saudi-led coalition's attacks targeting civilians in Yemen. In February 2019, the International Court of Justice in The Hague issued an advisory opinion stating that the UK must transfer the Chagos Archipelago to Mauritius as they were not legally separated from the latter in 1965. Liberal Democrat foreign affairs spokesperson Alistair Carmichael stated: "The ICJ has very clearly instructed the UK to return the island chain to Mauritian control. The government's refusal to do so is arrogant and jeopardises our credibility on a world stage."