War separates 17,000 children in Gaza from their families. Many have been lost during forced displacements and, in the chaos prevailing in the Strip, no one has been able to locate their parents.

Some show up alone and injured at the hospital. Others are helped by strangers who notice that a child is wandering next to them following the crowd. They have such levels of anxiety that we have seen self-harming behavior and even suicidal ideation, says Ruth Conde, a Spanish pediatric nurse.