Sahel : le dialogue est-il possible avec les groupes extrémistes violents ?

FILE - In this Thursday, Feb. 17, 2011 file photo, al-Shabab fighters march with their weapons during military exercises on the outskirts of Mogadishu, Somalia. Foreign military forces carried out a pre-dawn strike Saturday, Oct. 5, 2013 against foreign fighters in the same southern Somalia village where U.S. Navy SEALS four years ago killed a most-wanted al-Qaida operative, officials said. (AP Photo/Mohamed Sheikh Nor, File)