A girl practices martial arts during a training at a school in Syrian opposition-held village of al-Jeineh, Syria on April 11, 2021. (Photo by Khalil Ashawi/Reuters)

Russian servicemen display military camouflage equipments during the joint military anti-terrorist command and staff exercise of the armed forces of the Shanghai Cooperation Organization member states Peace Mission-2021 at the Donguz training ground in the Orenburg region, Russia, 23 September 2021. More than 3.4 thousand servicemen from Russia, India, China, Pakistan, Tajikistan, Uzbekistan, Kazakhstan, Kyrgyzstan and more than 600 units of weapons, military and special equipment are involved in the exercise Peace Mission-2021. (Photo by Maxim Shipenkov/EPA/EFE)

A Hezbollah supporter fires a rocket-propelled grenade in the air to celebrate the arrival of Iranian fuel tankers to Lebanon, in the eastern town of Baalbek, Lebanon, Thursday, September 16, 2021. The delivery violates US sanctions imposed on Tehran after former President Donald Trump pulled America out of a nuclear deal between Iran and world powers three years ago. (Photo by Bilal Hussein/AP Photo)

Students of Yuba Pratibha School, wearing a face shield and masks at school during a coronavirus pandemic in Kathmandu, Nepal, 26 November 2020. The head Teacher of Yuba Pratibha School, Yanga Raj Dahal, started to conduct classes for students, who can’t afford and attend online classes, with strict sanitary regime, providing also free face masks and shields for students. However majority of schools have been conducting online classes in Nepal from 19 March 2020 as part of precautionary measures against the spread of the coronavirus Covid-19. (Photo by Narendra Shrestha/EPA/EFE)

Mahmoud El Komy, a 26-year-old Egyptian mechatronics engineer, stands beside Cira 3, a remote-controlled robot that runs tests on suspected coronavirus disease (COVID-19) patients, to limit the human exposure to the virus, amid a second wave of infections in Tanta, Egypt, November 18, 2020. (Photo by Mohamed Abd El Ghany/Reuters)

Vogue dancer Xiong Daiki, 22, takes a video of his team to promote vogue dancing, almost a year after the global outbreak of the coronavirus disease (COVID-19) in Wuhan, Hubei province, China on December 15, 2020. During lockdown, Daiki, his students and friends practiced at home in their bedrooms, staying in touch by sharing videos of new dance routines. (Photo by Aly Song/Reuters)

Dancers of the Palestinian Jafra Dabke Team perform a traditional dabke dance while wearing latex gloves and surgical masks for people confined due to a COVID-19 coronavirus pandemic lockdown in the village of Tarqumia northwest of Hebron in the occupied West Bank, on April 15, 2020. (Photo by Hazem Bader/AFP Photo)

Final-year student Alina Repkina prepares for a livestream of the Last Bell ceremony for school leavers at secondary school No 11 in Rostov-On-Don, Russia on May 30, 2020. It is the first time in Russia that such ceremonies have been held via video link due to the coronavirus lockdown restrictions. (Photo by Valery Matytsin/TASS)