Former French first lady Valerie Trierweiler holds a placard...

PARIS, FRANCE - 2015/04/14: Former French first lady Valerie Trierweiler holds a placard reading "Stop Boko Haram" during a demonstration as part of the "Bring Back Our Girls" campaign in front of the Eiffel tower in Paris to mark the first anniversary of the kidnapping of over 200 Nigerian schoolgirls by Boko Haram militants. (Photo by Nicolas Kovarik/Pacific Press/LightRocket via Getty Images)