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Infographic: Syria's Children of War

<p>Part of our ongoing special report on the worst humanitarian crisis in the world, we take a look at how many children are affected by the Syrian War.</p>
Jerome Delay / AP Images for NBC News
Gamal, 5, walks in the Fayda Camp where he and his family fled two years ago from their neighborhood in Idlib, Syria, which was under frequent attack. Each time bombs dropped nearby, Gamal cried. He still frequently wakes up in the middle of the night shouting. His father Khaled said all he wants for Gamal is happiness and a good life.Jerome Delay / AP Images for NBC News

The toll of the Syrian Civil War has been staggering. At least 10,000 children have been killed in the conflict and more than 5,000,000 are in need of humanitarian assistance, according to UNICEF.

Refugees have been fleeing to neighboring countries, seeking food, shelter and medical care.

Our special coverage on the crisis in Syria as it enters its fourth year this week continues all day on and tonight on “NBC Nightly News with Brian Williams.”