exchange for the recognition of Israel by Morocco. However, the European States did not modify their position with regard to the UN resolutions that recognise the Western Sahara as a territory yet to be decolonised. This, indirectly, together with the hosting of Brahim Gali, leader of the Polisario, for medical treatment in Spain, was seen by Morocco as an aggression, and provoked a new migratory crisis over the Spanish domain of Ceuta, in North Africa. This crisis was polemic, due to the fact that Morocco, beyond the diplomatic channels and with the passive role of the Moroccan frontier police, which did not impede the flow whether it was by jumping the fence or by swimming through the sea that surrounds the frontier line. The Spanish army intervened to control the trespassing and to save people at risk in the sea. At least two people died in the episode when trying to reach the shore. See also Western Sahara Sand War Scramble for Africa Berlin Conference Spanish Morocco Plazas de soberanía Perejil Island List of Spanish colonial wars in Morocco List of irredentist claims or disputes Cold War Allal al-Fassi Irredentism References Historiography of Morocco History of Western Sahara Morocco Mauritania–Morocco relations Moroccan nationalism