المسيرة الخضراء
Since Moroccan independence the dispute over the "plazas de soberanía" has flared up from time-to-time, most notably in 1975 when it was feared Morocco would attempt an invasion of the territories similar to the Green March invasion of Western Sahara conducted that same year. At present Spain remains in control of the "plazas" and refuses to discuss the issue of their sovereignty with Morocco.