The Comoros has repeatedly pressed its claim to Mayotte before the United Nations General Assembly, which adopted a series of resolutions under the caption "Question of the Comorian Island of Mayotte", opining that Mayotte belongs to the Comoros under the principle that the territorial integrity of colonial territories should be preserved upon independence. As a practical matter, however, these resolutions have little effect and there is no foreseeable likelihood that Mayotte will become "de facto" part of the Comoros without its people's consent. More recently, the Assembly has maintained this item on its agenda but deferred it from year to year without taking action. Other bodies, including the Organization of African Unity, the Movement of Non-Aligned Countries and the Organisation of Islamic Cooperation, have similarly questioned French sovereignty over Mayotte. To close the debate and to avoid being integrated by force in the Union of the Comoros, the population of Mayotte overwhelmingly chose to become an overseas department and a region of France in a 2009 referendum. The new status was effective on 31 March 2011 and Mayotte has been recognised as an outermost region by the European Union on 1 January 2014. This decision legally integrates Mayotte in the French Republic.