Galkayo, Somalia: Ahmed Adan Ahmed, 13, spends his days walking in circles, or running his hands through the sand at his feet. For 10 years he has been tied to a stick under the tarpaulin of a tent in a refugee camp. Photo by Robin Hammond.

Galkayo, Somalia: Ahmed Adan Ahmed, 13, spends his days walking in circles, or running his hands through the sand at his feet. For 10 years he has been tied to a stick under the tarpaulin of a tent in a refugee camp.

Photo by Robin Hammond.

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