Palestinians dressed in costumes perform to amuse schoolchildren on the first day of a new school year, at a United Nations-run school in Deir al-Balah refugee camp in the central Gaza Strip August 23, 2017.
Palestinian schoolchildren stand in a line on the first day of a new school year, at a United Nations-run school in Deir al-Balah refugee camp in the central Gaza Strip August 23, 2017.
Image used for illustrative purposes. Palestinian schoolchildren wait to enter to their class on the first day of a new school year, at a United Nations-run school in Deir al-Balah refugee camp in the central Gaza Strip August 23, 2017.
Palestinian schoolchildren play on the first day of a new school year, at a United Nations-run school in Deir al-Balah refugee camp in the central Gaza Strip August 23, 2017. REUTERS/Ibraheem Abu Mustafa
Palestinian schoolchildren stand outside their classrooms on the first day of a new school year, at a United Nations-run school in Deir al-Balah refugee camp in the central Gaza Strip August 23, 2017.
Palestinian schoolchildren ride a donkey-drawn cart as they make their way to school on the first day of a new school year, at a United Nations-run school in Deir al-Balah refugee camp in the central Gaza Strip August 23, 2017.
Palestinian schoolgirls make their way to their school on the first day of a new school year, at a United Nations-run school in Deir al-Balah refugee camp in the central Gaza Strip August 23, 2017.
Back to school in Gaza's refugee camp
Palestinian schoolchildren play on the first day of a new school year, at a United Nations-run school in Deir al-Balah refugee camp in the central Gaza Strip August 23, 2017.