 The "Tropas Nómadas" (Nomad Troops) were an auxiliary regiment of Sahrawi tribesmen serving in the colonial army in Spanish Sahara (today Western Sahara).Operational from the 1930s until the end of the Spanish presence in the territory in 1975, the "Tropas Nómadas" were equipped with small arms and led by Spanish officers.The unit guarded outposts and sometimes conducted patrols on camelback.