welcomed by the Gibraltar Government ... To our knowledge, it is not the position of the present Spanish Government or any previous Spanish Government, that it is opposed to visits by nuclear submarines." 2002 – In the months that predated the referendum called by the Gibraltar government on the joint sovereignty agreement disagreements could be categorised as: Control of the military installations. Spain wished to control the military installations of the territory, even in the event of joint sovereignty. This pretension was considered unacceptable by the British Ministry of Defence. The referendum itself. Both the Spanish and British governments stated that the referendum had no legal effect, but it clearly indicated the democratically expressed will of the people of Gibraltar to "not be Spanish". As the British Government is committed to respect those wishes, the idea of a joint sovereignty deal has been abandoned. 2004 – A visit by The Princess Royal in June 2004, the brief return of HMS Tireless in July 2004, together with the Tercentenary Celebrations of the capture of The Rock were subjects of complaint by the Spanish Government. A new round of talks on a tri-lateral basis were proposed in October 2004 to discuss regional co-operation. In February 2005 the first talks took place at a meeting held in Málaga and subsequently in Portugal and London. This is the first sign of formal recognition of the Government of Gibraltar, and has been generally welcomed. The main issues of the talks have been a new agreement on the airport, the pensions of the Spanish workers that worked in Gibraltar during the 1960s, and the removal of Spanish restrictions on telecommunications. 2006 – Those issues were successfully resolved in September 2006 in the Córdoba Agreement. The process continues. 2007 – A bulk carrier, the , ran aground south of Europa Point in Gibraltar and broke up on the reef in August 2007, generating accusations of pollution in Spain and claims not only against the Government of Gibraltar but also against that of Spain. Its cargo was scrap metal and the vessel's fuel was promptly drained. The Government of Gibraltar claimed in December 2007 that the operation did not represent a material risk to the environment since the vessel had been defuelled and only small, remnant amounts of fuel remained in the engines themselves. The Spanish branch of Greenpeace claimed that, as late as February 2008, fuel spills