The resolutions on the decolonisation of Gibraltar focused on the "interests" and not the "wishes" of the Gibraltarians. The latter resolution states that: any colonial situation which partially or completely destroys the national unity and territorial integrity of a country is incompatible with the purposes and principles of the Charter of the United Nations and especially with paragraph 6 of Resolution 1514 (XV) of the General Assembly [...] Invites the Governments of Spain and the United Kingdom of Great Britain and Northern Ireland to resume without delay the negotiations provided for in General Assembly Resolutions 2070 (XX) and 2231 (XXI), with a view to putting an end to the colonial situation in Gibraltar and to safeguarding the interests of the population. From such a point of view, Gibraltarians are seen as mere "settlers" from the United Kingdom and other countries and only their interests, not their wishes (as the right to self-determination would involve), need be safeguarded. The point of view that they were settlers is supported by the fact that following the 1704 capture of Gibraltar by Anglo-Dutch troops, only around 70 out of the original 5,000 Spanish inhabitants chose to remain in Gibraltar. Therefore, Spain has insisted that the Gibraltar dispute is a purely bilateral matter with the United Kingdom and has ignored the role and will of the Gibraltarians. The first formal proposal on how to achieve the return of Gibraltar to Spain was made on 18 May 1966 by the Spanish Minister of Foreign Affairs, Fernando Castiella. The proposal comprised three clauses: "The cancellation of the Treaty of Utrecht and the subsequent return of Gibraltar to Spain." "The stay of the British base in Gibraltar, its use being subject to a specific Anglo-Spanish agreement." "A 'Personal Statute' for Gibraltarians, under United Nations guarantee, protecting their cultural, social and economic interest in Gibraltar or anywhere else in Spain, including their British nationality. An 'appropriate ... administrative formula' should be also agreed." The proposal was rejected by the British Government and by the Gibraltarians, which overwhelmingly voted to remain under British sovereignty in a referendum held in 1967 (12,138 to 44). As a result, the UN General Assembly, during its twenty-third session, adopted resolution 2429 of 1968 (XXIII), denounced the 1967 referendum and requested the United Kingdom not to delay negotiations. No further advance for the Spanish claims was achieved for the following forty years. In view of