The decision "was undoubtedly an error that must be rectified as soon as possible," said the former Spanish foreign minister in an article published, on Friday, by the electronic portal "politicaexterior.com".

This attitude "has added to the public and provocative position of one of the parties of the Spanish government coalition" on the question of the Moroccan Sahara, said Piqué.

"As the military leader of the Polisario, the man named Brahim Ghali broke the ceasefire in force for 30 years," recalled the former Spanish official, noting that the history of the leader of the separatists, sued for serious crimes of terrorism and genocide, is well known.

In addition, Piqué highlighted the development that Morocco is experiencing and the role it plays on the international scene.

Morocco's geopolitical importance is continuously growing thanks to its internal stability, its foreign policy and its visible economic progress, he noted, highlighting the successes of Moroccan diplomacy in the African continent.

Thanks to these performances, Morocco has become an "important ally" of the United States at the level of the Arab world because of its contribution to the security of the southwestern Mediterranean region and its growing influence on the rest of the African continent,  Piqué noted.