Palestinian children play in a park during the Eid al-Adha holiday in Gaza City, on Aug. 13, 2019. (Str/Xinhua)

A Palestinian child has his face painted during the Eid al-Adha holiday in Gaza City, on Aug. 13, 2019. (Str/Xinhua)

Palestinian children play in a park during the Eid al-Adha holiday in Gaza City, on Aug. 13, 2019. (Str/Xinhua)

Palestinian children play in a park during the Eid al-Adha holiday in Gaza City, on Aug. 13, 2019. (Str/Xinhua)

A Palestinian child has his face painted during the Eid al-Adha holiday in Gaza City, on Aug. 13, 2019. (Str/Xinhua)