Palestinian teenage boys hold toy guns during a military training course at a summer camp run by Hamas at the Al-Yarmouk military site, east of Gaza City, on June 26, 2021.(Photo: Xinhua)
Palestinian teenage boys receive training on fighting at a military summer camp run by Hamas at the Al-Yarmouk military site, east of Gaza City, on June 26, 2021.(Photo: Xinhua)
A Palestinian boy climbs over the burning barrier at a military summer camp run by Hamas at the Al-Yarmouk military site, east of Gaza City, on June 26, 2021.(Photo: Xinhua)
Palestinian teenage boys crawl under bars at a military summer camp run by Hamas at the Al-Yarmouk military site, east of Gaza City, on June 26, 2021.(Photo: Xinhua)