A police officer gives instructions to migrants rushing to board a train that would take them towards Serbia, at the railway station in the southern Macedonian town of Gevgelija, Wednesday, August 20, 2015. Macedonian police stepped up the security at the border with Greece apparently trying to stem recent surge of migrants who are coming from Greece. (Photo by Darko Vojinovic/AP Photo)

Migrants scramble aboard a train at the station in Beli Manastir, Croatia September 18, 2015. Migrant numbers in Europe will build up in coming days and their flows may fragment further into new routes, the U.N. refugee agency said on Friday, urging the European Union to grasp a last chance to resolve the refugee crisis next week. (Photo by Laszlo Balogh/Reuters)

An Indian soldier from the international peace keeping force (IPKF) instructs young Sri Lankan recruits in shooting, part of the training given to the citizen's volunteer force in the North-Eastern Sri Lankan city of Batticaloa, September 28, 1989. (Photo by Barbara Walton/AP Photo)

School teachers and staff members take part during an active shooter training at James I. O'Neill High School in Highland Falls, New York, U.S., December 12, 2017. (Photo by Eduardo Munoz/Reuters)

Participants hold flags during a demonstration lesson that is part of an extracurricular military-patriotic program, which involves weapon training, first aid treatment, camping skills and other courses, in Sevastopol, Crimea on May 19, 2023. (Photo by Alexey Pavlishak/Reuters)

Natalia, 51, a mother of three, serving as a combat medic in the 24th Mechanized Brigade takes part in a field training exercise in an undisclosed location in the eastern region of Ukraine, on March 18, 2025, amid the Russian invasion of Ukraine. (Photo by Roman Pilipey/AFP Photo)

Fans react as Kansas City Chiefs wide receiver Xavier Worthy, right, signs autographs at the team's NFL football training camp Sunday, July 27, 2025, in St. Joseph, Mo. (Photo by Charlie Riedel/AP Photo)

Afghan men work in a small sweets factory in Kabul, Afghanistan January 5, 2017. (Photo by Mohammad Ismail/Reuters)