The Berm and the Land RoverWestern Sahara / Morocco / Mauritania · 1975–1991"When Spain walked out, two neighbours walked in. One was driven back to its own capital. The other built a wall two thousand kilometres long."Spain had governed Western Sahara for nearly a century and left in a hurry. In November 1975 King Hassan II of Morocco organised the Green March - three hundred and fifty thousand Moroccan civilians walking into the territory with flags and Qur'ans, a diplomatic fact presented to the world before the army followed.The lesson the elders kept: A lighter force drove out one occupier and still met the harder one. Morocco's answer was not a better army but a different kind of fact - a wall that took ten years to finish and may take a century to undo.