A line of soldiers firing handguns during a training session, circa 1920. (Photo by Keystone). P.S. All pictures are presented in high resolution.

A U.S. soccer fan pretends that Uruguay's soccer striker Luis Suarez is biting him as he takes a selfie next to an Adidas advertisement featuring Suarez near Copacabana beach in Rio de Janeiro, Brazil, Thursday, June 26, 2014. FIFA banned Suarez from all football activities for four months on Thursday for biting an opponent at the World Cup, a punishment that rules him out of the rest of the tournament. (Photo by Matt Dunham/AP Photo)

A dog groomer prepares a model dog during the 2nd Annual Shenzhen International Pet Exhibition, July 14, 2016, in Shenzhen, China. The pet exhibition runs from July 14 - 17, 2016 at the Shenzhen Convention & Exhibition Center. (Photo by VCG/Getty Images)

A model poses at Checkpoint Charlie, a historic place in the German capital to promote the fashion magazine “Sous” on June 12, 2012. (Photo by Maurizio Gambarini)

Members of the Scottish Chinese community take part in Edinburgh Chinese New Year Festival on January 30, 2022 in Edinburgh, Scotland. 2022 marks the Chinese Year of the Tiger, Chinese New Year in Edinburgh has become one of the largest celebrations of its kind in Scotland. (Photo by Jeff J. Mitchell/Getty Images)

Cai Xuning, 36, takes care of pet rabbits at PET ZONE pet store on January 17, 2023 in Wuhan, Hubei Province, China. Pet rabbit breeder and PET ZONE store owner Cai Xuning is seeing an increase in interest in pet rabbits, as China prepares to welcome the Spring Festival on January 22, ushering in the Year of the Rabbit. (Photo by Getty Images)

Members of the police forces of the Republic of Srpska march during a parade marking the 32nd anniversary of the Republic of Srpska, in the Bosnian town of Banja Luka, 240 kms northwest of Sarajevo, Tuesday, January 9, 2024. The United States on Tuesday warned that ongoing celebrations of a Bosnian Serb self-proclaimed national holiday were in violation of Bosnia's constitution and a 1995 peace agreement, and as such amounted to a criminal offense. The Jan. 9 holiday commemorates the date in 1992 when Bosnian Serbs declared the creation of their own state in Bosnia, igniting the country's devastating four-year war that killed more than 100,000 people. (Photo by Radivoje Pavicic/AP Photo)

People wearing face masks walk through Ginza area on December 27, 2020 in Tokyo, Japan. Japan announced it will close its borders to non-resident foreign nationals from tomorrow until the end of January after two people were discovered to be infected with a new strain of Covid-19 coronavirus that has begun spreading around the world. The country is also grappling with a surge in coronavirus infections, with Tokyo reporting 708 cases today. To date, Japan has recorded 218,453 infections, 3,052 deaths and 3,052 recoveries from the virus. (Photo by Yuichi Yamazaki/Getty Images)