A Palestinian protester uses a sling shot to throw stones towards Israeli security forces during clashes on the Israeli border Eastern Gaza City, Friday, November 6, 2015. (Photo by Adel Hana/AP Photo)
Participants wearing medieval costumes re-enact the 1620 battle of Bila Hora between Bohemian Estates and Austrian Imperial with Catholic forces in Prague, Czech Republic September 18, 2016. (Photo by David W. Cerny/Reuters)
A member of security forces takes part in a training session arranged by a security company in Tajoura suburb of Tripoli, Libya on February 10, 2021. (Photo by Hazem Ahmed/Reuters)
Afghan resistance movement and anti-Taliban uprising forces take part in a military training in Panjshir province on August 30, 2021. (Photo by Ahmad Sahel Arman/AFP Photo)
Marines of the Baltic Fleet forces of the Russian Navy train in the zone of obstacles during military exercises at the Khmelevka firing ground in the Kaliningrad region, Russia on November 24, 2021. (Photo by Vitaly Nevar/Reuters)
Members of the Territorial Defence Forces and volunteers place anti-tank obstacles at a checkpoint, as Russia's invasion of Ukraine continues, at the Independence Square in central Kyiv, Ukraine on March 3, 2022. (Photo by Valentyn Ogirenko/Reuters)
A slogan and crosses are painted on the helmet of a Ukrainian serviceman in Ruska Lozova, a village retaken by the Ukrainian forces, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine on May 16, 2022. (Photo by Ricardo Moraes/Reuters)
A Palestinian man uses a sling, during clashes with Israeli forces following the killing of Palestinian assailant Uday Al-Tamimi, in Bethlehem, in the Israeli-occupied West Bank on October 20, 2022. (Photo by Mussa Qawasma/Reuters)