Amphithéâtre Marguerite de Navarre, Site Marcelin Berthelot
En libre accès, dans la limite des places disponibles


During the second half of the 20th century, the development of oil economies in North Africa and repeated drought in the Sahel transformed Saharan and trans-Saharan patterns of exchange and mobility, introducing a steep north-south gradient. With demographic growth, rapid urbanization, and gradual replacement of caravans by trucks, licit and illicit trade and migration intensified and diversified. As, more recently, the Sahara has moved center-stage in a number of strategic domains – mineral resource extraction, migration control, counter-terrorism, and environmental crisis management – Saharan economies everywhere have been affected by national and international security interventions, compounding, in many cases, ongoing internal conflict and war.


Judith Scheele

Directrice d’études à l’École des hautes études en sciences sociales, Paris, France

Julien Brachet

Institut d’études pour le développement, Paris, France