It is now more than a decade since the violent Islamic group Boko Haram launched its reign of terror across northern Nigeria, claiming more than 27,000 lives and displacing over 2 million people. While its territorial gains have largely been recaptured, the insurgency rages on, devastating communities across vast stretches of the north-east and disrupting governance, livelihoods and food security, as well as posing a security risk to Niger, Chad and Cameroon.