G5 Sahel summit at Celle-Saint-Cloud in France

French President Emmanuel Macron hosts five African presidents in Celle-Saint-Cloud outside Paris on Wednesday, hoping to bolster the fledging G5 Sahel force fighting jihadists in an area the size of Europe. Two years in the planning, the force brings together troops from Burkina Faso, Chad, Mali, Mauritania and Niger in a desert region plagued by extremism where France is currently leading counterterrorism operations. IMAGES roundtable