Torkham, Afghanistan (CNN) - Sabar Mina is cloaked in a light green shawl tinged with dirt. She is holding an empty flour sack that she plans on filling with firewood.
Her eyes are soft and kind, but they bear the signs of exhaustion. There's a reason for that. Instead of going to school, the eight-year-old walks an hour to work.
All day long Sabar takes items back and forth between two of the most dangerous countries in the world, Afghanistan and Pakistan.
There are hundreds of children just like her. One charitable organization there estimates 300 children per day work the border at Torkham.