AB201 civil engineers build classrooms for Agadez villages
Two Nigerien girls sit on a pile of mudbrick at a village in Agadez, Niger, June 27, 2019. Most structures in Agadez are made from mudbrick which can be created by mixing mud, sand, and water with a binding material such as rice husks or straw. (U.S. Air Force photo by Staff Sgt. Devin Boyer)