People react standing behind the cordoned off area around the remains of a shell in Kyiv on February 24, 2022. - Russian President Vladimir Putin announced a military operation in Ukraine on Thursday with explosions heard soon after across the country and its foreign minister warning a "full-scale invasion" was underway. (Photo by Sergei SUPINSKY / AFP)

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The Russian UAV Orlan-10 complex at the exhibition of military equipment in the Patriot Park branch, Srednyaya Akhtuba, Volgograd region, Russia, Aug. 28, 2020. (Shutterstock Photo)

Russian - military - vehicles - army

People, some carrying bags and suitcases, walk in a metro station in Kyiv early on February 24, 2022. Air raid sirens rang out in downtown Kyiv on Thursday as cities across Ukraine were hit with what Ukrainian officials said were Russian missile strikes and artillery. - Russian President Vladimir Putin announced a military operation in Ukraine on Thursday with explosions heard soon after across the country and its foreign minister warning a "full-scale invasion" was underway. (Photo by Daniel LEAL / AFP)

People walk in central Kyiv in front of the Independence Monument early on February 24, 2022. - Russian President Vladimir Putin announced a military operation in Ukraine on Thursday with explosions heard soon after across the country and its foreign minister warning a "full-scale invasion" was underway. (Photo by Daniel LEAL / AFP)

A view of the Independence Monument and a sign "I love Ukraine" in central Kyiv early on February 24, 2022. - Russian President Vladimir Putin announced a military operation in Ukraine on Thursday with explosions heard soon after across the country and its foreign minister warning a "full-scale invasion" was underway. (Photo by Daniel LEAL / AFP)

A police car drives on a street in central Kyiv early on February 24, 2022. - Russian President Vladimir Putin announced a military operation in Ukraine on Thursday with explosions heard soon after across the country and its foreign minister warning a "full-scale invasion" was underway. (Photo by Daniel LEAL / AFP)

People ride an escalator at a metro station in Kyiv early on February 24, 2022. - Russian President Vladimir Putin announced a military operation in Ukraine on Thursday with explosions heard soon after across the country and its foreign minister warning a "full-scale invasion" was underway. (Photo by Daniel LEAL / AFP)

People, some carrying bags and suitcases, walk at a metro station in Kyiv early on February 24, 2022. - Russian President Vladimir Putin announced a military operation in Ukraine on Thursday with explosions heard soon after across the country and its foreign minister warning a "full-scale invasion" was underway. (Photo by Daniel LEAL / AFP)

A woman with a child and a dog walks at a metro station in Kyiv early on February 24, 2022. - Russian President Vladimir Putin announced a military operation in Ukraine on Thursday with explosions heard soon after across the country and its foreign minister warning a "full-scale invasion" was underway. (Photo by Daniel LEAL / AFP)

People react standing behind the cordoned off area around the remains of a shell in Kyiv on February 24, 2022. - Russian President Vladimir Putin announced a military operation in Ukraine on Thursday with explosions heard soon after across the country and its foreign minister warning a "full-scale invasion" was underway. (Photo by Sergei SUPINSKY / AFP)