South of Erfoud the tough Tafilalt – once the main caravan terminus for the lucrative Salt Road and the original homeland of Morocco's ruling Alawite dynasty – was one of the last areas to succumb to French control under the protectorate, with tribes putting up sporadic resistance until 1932. Two years later Morocco was officially considered ‘pacified’, but just to be on the safe side, Erfoud was built as a garrison town.