TOPSHOT - This photo taken on June 30, 2016 shows Women and children waiting in a queue to visit one of the Unicef nutrition clinics, in the Muna informal settlement, which houses nearly 16,000 IDPs (internally displaced people) in the outskirts of Maiduguri capital of Borno State, northeastern Nigeria.   
Nigeria has pledged to do more to tackle food shortages among people made homeless by Boko Haram, as the United Nations warned some 50,000 children could starve to death this year in one northeastern state alone. / AFP / STEFAN HEUNIS        (Photo credit should read STEFAN HEUNIS/AFP/Getty Images)