Nigerian soldiers hold their weapons as they sit on a military pick-up truck at their base in the town of Banamba, 150km (93 miles) from Bamako April 9, 2013. Mali's Prime Minister Django Cissoko paid a visit to the Nigerian Army troops base on Tuesday, reported local media. Picture taken April 9, 2013. REUTERS/Adama Diarra (MALI - Tags: POLITICS MILITARY CONFLICT)