Nigeria ’s new president, Muhammadu Buhari , dismissed all of his country’s top military officials on Monday, his spokesman announced, after weeks of mounting violence in which Boko Haram fighters have killed hundreds of civilians. The Nigerian military’s handling of Boko Haram’s bloody six-year uprising has been widely seen as dismal. It has been faulted not only for failing to stem the extremist group’s murderous rampages, but also for making the situation worse through widespread human rights violations. The country’s news media has been urging Mr. Buhari for weeks to get rid of the architects of what is seen in Nigeria as a failed campaign to stop the Islamist militant group. On Monday, some analysts questioned why Mr. Buhari, who […]