Chadian soldiers push a military pickup truck to get it out of the sand near the front line in the war against insurgent group Boko Haram in Gambaru, Nigeria, February 26, 2015.REUTERS/Emmanuel Braun
Chadian soldiers push a military pickup truck to get it out of the sand near the front line in the war against insurgent group Boko Haram in Gambaru, Nigeria, February 26, 2015.REUTERS/Emmanuel Braun