In 2015 more than a million refugees came to Europe seeking asylum. Most were fleeing the fighting in Syria and Iraq or escaping Taliban rule in Afghanistan. Bringing only what they could carry, many crossed the Aegean Sea from Turkey to Greece before continuing on to wealthier countries such as Germany and Sweden.

In March 2016 Turkey agreed to stem the flow of migration. Some European nations also closed their borders to the refugees. Unable to move forward or go back, more than fifty thousand migrants were stranded in Greece, one of Europe’s poorest countries. Fourteen thousand got stuck in the village of Idomeni, where they’d been trying to cross the border into Macedonia, and the area around a train station there became an unauthorized refugee camp.