Men wear masks as they sit in the metro in Prague, Czech Republic, 17 March 2020. According to media reports, the Czech government decided to impose a two-week quarantine in the country on the evening of 15 March, and ban all international travel from 16 March 2020. Currently 383 cases of the coronavirus SARS-CoV-2, which causes the Covid-19 disease, have been officially confirmed in Czech Republic. (Photo by Martin Divisek/EPA/EFE)

Revellers dressed as the Devil take part in a parade to celebrate Saint Nicholas Day (Mikulas) in Prague, Czech Republic on December 5, 2022. Meeting Saint Nicholas, the Aangel, and the Devil, who talk to children and reward those who have behaved well during the year with small presents, is tradition in the Czech Republic before the Christmas holidays. (Photo by Michal Cizek/AFP Photo)

Republic of Korea Air Force's (ROKAF) aerobatic unit “Black Eagles” maneuver their T-50B aircraft as they perform an air show at Clark Air Base on March 03, 2024 in Pampanga, Philippines. The Republic of Korea Air Force's (ROKAF) aerobatic unit “Black Eagles” is in the Philippines to conduct a series of air shows to mark the 75th anniversary of diplomatic relations between the Philippines and South Korea. (Photo by Ezra Acayan/Getty Images)

Hundreds of volunteers stand at Goma International Airport receiving instructions before boarding a plane that will take them to a training center after responding to Democratic Republic of Congo's President Felix Tshisekedi's call to join the army to go to the front lines to fight against the M23 rebellion (March 23 Movement) in Goma, Democratic Republic of Congo, on November 14, 2022. (Photo by Guerchom Ndebo/AFP Photo)

A child looks at a polar bear swimming under a water in its enclosure on a hot summer day at Prague Zoo, Czech Republic, July 30, 2015. (Photo by David W. Cerny/Reuters)

Participants wearing medieval costumes re-enact the 1620 battle of Bila Hora between Bohemian Estates and Austrian Imperial with Catholic forces in Prague, Czech Republic September 18, 2016. (Photo by David W. Cerny/Reuters)

A baby hippo swims under the water in its enclosure at Prague Zoo, Czech Republic, February 24, 2016. The baby was born on January 28, and is yet to be named. (Photo by David W. Cerny/Reuters)

A woman walks past servicemen of the self-proclaimed Donetsk People's Republic (DNR), who take part in a rehearsal for the Victory Day parade in Donetsk, Ukraine on May 3, 2018. (Photo by Alexander Ermochenko/Reuters)