Students at the Kharkiv Regional Center for Training Citizens for National Resistance undergo tactical training in field conditions in Kharkiv region, Ukraine on November 15, 2025. During these classes, students work in small groups to develop practical skills in tactical and firearms training, mine safety, military topography, and other subjects included in the civilian training program. Students in the state civilian training program include school teachers, municipal employees, community activists, and others. (Photo by Serhii Masin/Anadolu via Getty Images)

A woman poses for pictures next to a Christmas tree in a shop selling Russian products in Wuhan, in China's central Hubei province on December 22, 2024, ahead of the fifth anniversary of China confirming its first death from the Covid-19 coronavirus. (Photo by Hector Retamal/AFP Photo)

Kilgore College Rangerettes perform in front of spectators during London's New Year's Day Parade in London, United Kingdom on January 01, 2025. The annual parade attracts 500,000 audience lining the streets in central London to watch performances by 10,000 participants from the USA, UK and Europe. (Photo by Wiktor Szymanowicz/Anadolu via Getty Images)

Two dogs sent into outer space by the Soviet Union after their safe return to earth. They spent 22 days in orbit. (Photo by Central Press/Getty Images). 22nd March 1966

LONDON - JUNE 04: A piece entitled “Entrance into wood” by Elke Krystufek goes on show at The Royal Academy Summer Exhibition on June 4, 2008 in London. In it's 240th year, the exhibition displays a wide range of recent work by both established and emerging artists. 10,000 artists submitted work for selection this year. (Photo by Peter Macdiarmid/Getty Images)

The sun shines on trees that are displaying their autumn colours surrounding Palladian bridge and the lakeside Pantheon at the National Trust's Stourhead on November 3, 2010 near Warminster, England. (Photo by Matt Cardy/Getty Images)

Mary McHugh mourns her slain fiance Sgt. James Regan at “Section 60” of the Arlington National Cemetery May 27, 2007. Regan, a US Army Ranger, was killed by an IED explosion in Iraq. (Photo by John Moore/Getty Images)

(L-R) Michael Kasrpowicz, Jason Gillespie, Brett Lee and Glenn McGrath of Australia re-enact the famous Beatles album cover at Abbey Road on July 19, 2005 in London, United Kingdom (Photo by Hamish Blair/Getty Images)