In this Monday, March 14, 2016 photo, Syrian refugee boy Khalid Rakan, 10, from Hama, Syria, poses for a picture at an informal tented settlement near the Syrian border on the outskirts of Mafraq, Jordan. “I just want to go back to our home in Syria” Khalid said. About half of the 4.8 million Syrians who fled their homeland are children, and some of the most vulnerable live in dozens of makeshift tent camps, including Jordan, which has taken in close to 640,000 refugees. Children in these camps near the northern city of Mafraq say they miss their old lives in Syria, especially going to school. (AP Photo/Muhammed Muheisen)

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