"Once upon a time, I was a child," says Zannah Mustapha. And a fortunate one, at that, adds the 58-year-old Nigerian lawyer.
This is not the case for many young people today in his city of Maiduguri, the capital of Nigeria's Borno State — and the epicenter of the Boko Haram insurgency.
An estimated 1 million kids have been displaced, and too many of them have lost their parents to violence.
Mustapha's response? "I have to protect them."