PARIS (AP) — Child soldiers, underage sex slaves, orphaned adolescent refugees — France's president and UNICEF are urging the international community to do more to protect the more than 200 million children of today's conflict zones.

French President Francois Hollande pleaded that "the situation is urgent" as he opened a conference in Paris on Tuesday with representatives from 80 countries. He decried "the nightmare that killed these children's innocence."

Organizers want coordinated efforts to liberate and re-integrate thousands of child soldiers from Sudan to Somalia, and thousands of girls forced into wedlock by militants from Nigeria to Afghanistan. The conference is pushing for tougher prosecution of abusers, and protection for hospitals and schools targeted in war zones.

Hollande also called on Britain to take in unaccompanied child refugees currently in France.