Nigeria’s military says it has bombed northeastern training camps and equipment belonging to Boko Haram, killing a large number of insurgents.<br /><br /> The airstrikes hit targets in Sambisa forest, where the Islamist group initially took the more than 200 schoolgirls it kidnapped last year before dispersing them into groups.<br /><br /> Boko Haram’s relentless attacks on military and civilians have killed thousands since it launched its violent campaign for a breakaway Islamic state in 2009, threatening the stability of Nigeria and the entire region.<br /><br /> The extremists were cited as a reason why Nigeria postponed this month’s presidential and parliamentary elections to March 28. But in a video the group’s leader Abubakar Shekau has threatened to disrupt the upcoming vote.<br /><br /> Yet the tide could be turning in the battle against Boko Haram, with neighbours Chad, Cameroon and Niger, all of whom are plagued by the militants, also weighing in.<br /><br /> Chad launched a US-backed counter-terrorism exercise on Monday, in
