Soldiers of People's Liberation Army (PLA) Lanzhou Military Region jump through a burning obstacle during a training session at a military base in Tianshui, Gansu province, China, January 6, 2016. (Photo by Reuters/Stringer)

An Israeli teenager crawls through mud as he participates in an annual combat fitness training competition, as part of his preparations ahead of his compulsory army service, near Kibbutz Yakum, central Israel February 19, 2016. (Photo by Baz Ratner/Reuters)

Soldiers of China's People's Liberation Army (PLA) jump as part of their winter training in temperature of negative 26 degrees Celsius at China's border with Russia in Heihe, Heilongjiang province, December 14, 2015. (Photo by Reuters/Stringer)

A woman and a girl dressed in historical Red Army uniform, wait before watching the Victory Day parade, marking the 71st anniversary of the victory over Nazi Germany in World War Two, at Red Square in Moscow, Russia, May 9, 2016. (Photo by Grigory Dukor/Reuters)

A female soldier takes part in a training for women at the Tolemaida Military Air Base in Tolemaida, Colombia, on May 16, 2023. The last time the Colombian Army enlisted women in their ranks was in 1993. Now, 30 years on, more than 1,200 women voluntarily joined the military service in the country. (Photo by Raúl Arboleda/AFP Photo)

Indian Army Jawan (soldiers) of the “ASC Tornadoes” daredevil bike team perform during Independence Day celebrations in Bangalore, India, 15 August 2024. India celebrated its 78th Independence Day on 15 August. (Photo by Jagadeesh N.V./EPA)

Nopparat (R), a 24-year-old transgender, and a Buddhist monk (L) wait to speak to officers during an army draft held at a school in Bang Na in Bangkok April 3, 2015. Thai men over 21 must serve in the army. Those who volunteer serve six months, but others choose the annual lottery, which goes on for 10 days in recruitment centres around Thailand. Only those not considered physically capable of service, the mentally ill and those who have significantly altered their physical appearance, such as transgenders, are exempt. Picture taken April 3, 2015. (Photo by Athit Perawongmetha/Reuters)

Auxiliary Territorial Service (ATS) plotters at work at Coastal Artillery Headquarters in Dover, December 1942. The Auxiliary Territorial Service was the women's branch of the British Army during the Second World War. It was formed on 9 September 1938, initially as a women's voluntary service, and existed until 1 February 1949, when it was merged into the Women's Royal Army Corps. The ATS had its roots in the Women's Auxiliary Army Corps (WAAC), which was formed in 1917 as a voluntary service. During the First World War its members served in a number of jobs including clerks, cooks, telephonists and waitresses. The WAAC was disbanded after four years in 1921. (Photo by Ted Dearberg/IWM/PA Wire)