This photo taken November 10, 2015 shows homeless street children sleeping in a park in Manila. The Philippines has swept 20,000 homeless from the streets, cancelled hundreds of flights and declared public holidays in Manila to ensure a safe and efficient summit of 21 world leaders next week, officials say. (Photo by Jay Directo/AFP Photo)

Children play football in Bujumbura, Burundi on March 19, 2015. (Photo by Carl de Souza/AFP Photo)

Children play with weapons during Children's Day celebration at a military facility in Bangkok, Thailand January 14, 2017. (Photo by Jorge Silva/Reuters)

Migrant children play with leaves during Christmas Eve at a shelter, as they travel with their parents as part of a caravan with humanitarian visas to transit throughout the country, in Monterrey, Mexico on December 24, 2021. (Photo by Daniel Becerril/Reuters)

A girl visits by an area decorated with lanterns ahead of the Chinese Lunar New Year festivity at Yu Garden, following the new coronavirus disease (COVID-19) cases in Shanghai, China, January 28, 2022. (Photo by Aly Song/Reuters)

A child stops by a large print at a photographic memorial for those killed in the confrontation between Ukraine's military and the pro-Russia separatist forces in Sievierodonetsk, Luhansk region, eastern Ukraine, Wednesday, February 23, 2022. Ukraine urged its citizens to leave Russia, and Europe braced for further confrontation Wednesday after tensions escalated dramatically when Russia's leader received authorization to use military force outside his country and the West responded with a raft of sanctions. (Photo by Vadim Ghirda/AP Photo)

Local boy Faddei plays in a destroyed Russian military truck in the village of Kolychivka, in Chernihiv region, Ukraine on April 27, 2022. (Photo by Vladyslav Musiienko/Reuters)

A boy wearing a World War II guerrilla cap with the five-point star attends the Victory Day ceremony in Belgrade, Serbia, Monday, May 9, 2022. People are marking the 77th anniversary of the victory over Nazi Germany in WWII. (Photo by Darko Vojinovic/AP Photo)