Sidi Brahim Ould Sidati of the Coordination of Movements for Azawad signs a peace agreement in Bamako, Mali, June 20, 2015. An alliance of Tuareg-led rebels and the Malian government signed a peace deal on Saturday meant to draw a line under a 2012 uprising and allow the authorities to focus on tackling Islamist militants in the desert north. REUTERS/Stringer