A Russian trenchmortar crew run to take up a new firing position in the Stalingrad area during the Great Patriotic War. (Photo by Keystone/Getty Images). October 1942

Officers from the municipal authorities of Huaian city perform red songs at the Huaian Great Hall of the People on June 13, 2011 in Huaian, Jiangsu Province of China. This year's celebrations will mark the 90th anniversary of the founding of the Communist Party of China. (Photo by ChinaFotoPress/Getty Images)

A tree is silhouetted against a light display during the The Magical Lantern Festival marking the Chinese new year at Chiswick House in London, Britain January 18, 2017. (Photo by Neil Hall/Reuters)

A model presents a creation at the Central St Martin's catwalk show during London Fashion Week in London, Britain February 17, 2017. (Photo by Neil Hall/Reuters)

Festival goers dance during Glastonbury Festival at Worthy Farm, near Pilton, Somerset, Britain, 23 June 2017. The outdoor festival runs from 21 to 25 June. (Photo by Nigel Roddis/EPA)

Long row of shiny new Flying Fortresses, part of huge reserves being built up in Britain for D-Day, stands by to be flown to combat units as replacements, May 25, 1944. (Photo by AP Photo)

People attend the C2H4 catwalk show at London Fashion Week Men's in London, Britain January 6, 2019. (Photo by Henry Nicholls/Reuters)