A soldier helps another with her ear protection at the Terningmoen Camp in Elverum, Norway on March 23, 2017. Soldiers demonstrate their skills and tactics during a contract drill as they train to become part of the world's first all-female special forces unit, the Jegertroppen or “hunter troops”. (Photo by Carolina Reid/NBC News)

North Korean leader Kim Jong Un smiles as he attends a flight training session by female fighter pilots Jo Kum Hyang and Rim Sol in this undated photo released by North Korea's Korean Central News Agency (KCNA) on June 22, 2015. (Photo by Reuters/KCNA/Antara Foto)

Instructor Raquel Potí leads a stilt walking workshop at the Museum of Modern Art in Rio de Janeiro, Brazil, Saturday, January 27, 2024. Potí is chiefly responsible for the explosion of stilt walking in Rio, having trained more than 1,000 kids and adults over the past decade. (Photo by Silvia Izquierdo/AP Photo)

National Guardsmen are put through riot training in Boston's Commonwealth Armory on Friday, October 18, 1974. Massachusetts Gov. Francis W. Sargent called up the guard to quell school violence, but the city has been relatively calm and the guard has remained in the armories. (Photo by JWG/AP Photo)

People pose for photos in front of an old Korail train on the disused Gyeonghwa Station railway track during the Jinhae Cherry Blossom Festival in Changwon on March 31, 2024, around 311 kilometres southeast of Seoul. The annual festival has been running since 1952. (Photo by Anthony Wallace/AFP Photo)

Judy, a black collie whose owner was killed by a train when trying to retrieve her after she slipped her lead. (Photo by Evening Standard/Getty Images). 17th December 1976

Passengers take photos at a wildfire while traveling on a train in Zamora, Spain, Monday, July 18, 2022. When Francisco Seoane's train unexpectedly stopped in Spanish countryside that was being engulfed by a wildfire, he and other passengers got a fright when they looked out at flames encroaching on both sides of the track. The Spaniard told The Associated Press it was scary to see how quickly the fire spread. Video of the unscheduled – and unnerving – stop shows about a dozen passengers in Seoane's railcar appearing alarmed as they look out of the windows Monday. (Photo by Francisco Seoane Perez/AP Photo)

Trainers from Tianjiao Special Guard/Security Consultant Ltd. Co. engage trainees dressed in swimming suits as they crawl on the beach during a training session in Sanya, Hainan province January 8, 2012. (Photo by CHINA DAILY/Reuters)