Military commanders inspect arms and ammunitions recovered from Boko Haram jihadists on display at the headquarters of the 120th Battalion in Goniri, Yobe State, in Nigeria's restive northeast on July 3, 2019. - Boko Haram's decade-long campaign of violence has killed 27,000 people and displaced about two million in Nigeria. The insurgency has spilled over into neighbouring Niger, Chad and Cameroon, prompting formation of a regional military coalition to defeat the jihadist group. (Photo by AUDU MARTE / AFP)