Children attending class on the first day of school, which was damaged by an airstrike during fighting between Saudi-led coalition-backed government forces and Houthi forces, Taizz, Yemen, September 3, 2019.

Children attending class on the first day of school, which was damaged by an airstrike during fighting between Saudi-led coalition-backed government forces and Houthi forces, Taizz, Yemen, September 3, 2019. 

© 2019 Ahmad al-Basha/AFP/Getty Images