A Ukrainian police officer uses a flashlight to search for drone debris near the site of an explosion following a Russian drone attack in Kyiv, Ukraine, on Saturday, Nov. 25, 2023, its most intense on the Ukrainian capital since the beginning of its invasion, military officials said. Felipe Dana/AP hide caption
This photo shows a part of an apartment building which was reportedly damaged by Ukrainian drone in Moscow, Russia, Tuesday, May 30, 2023. In Moscow, residents reported hearing explosions and Mayor Sergei Sobyanin later confirmed there had been a drone attack that he said caused "insignificant" damage. AP hide caption
In this Feb. 11, 2016 file photo, Iranian drone Shahed-129 is displayed at a rally in Tehran, Iran. The White House on Monday, May 15, 2023, said that Russia is looking to buy additional advanced attack drones from Iran for use in the Kremlin's war in Ukraine after using up most of the 400 drones it had previously purchased from Tehran. ncil spokesman John Kirby said. Ebrahim Noroozi/AP hide caption
Ilya Ponomarev is the founder of February Morning, an opposition Russian-language online newscast aimed at viewers in Russia. Behind him is a flag symbolizing the "free Russia of the future," created following Russia's 2022 invasion of Ukraine. Ponomarev calls it the "Russian tricolor without the blood." Eleanor Beardsley/NPR hide caption
People ice skate at a Christmas market at VDNG, the Expocenter of Ukraine, in Kyiv on Dec. 3. Pete Kiehart for NPR hide caption
Civilians sit on an escalator while taking shelter inside a metro station during an air raid alert in the center of Kyiv on Dec. 16, 2022. A fresh barrage of Russian strikes hit cities across Ukraine early on Friday. Dimitar Dilkoff/AFP via Getty Images hide caption
Firefighters work after a drone attack on buildings in Kyiv, Ukraine, Monday. It was the second Monday in a row of Russian strikes on the Ukrainian capital. Roman Hrytsyna/AP hide caption
A drone is seen in the sky seconds before it fired on buildings in Kyiv, Ukraine, Monday, Oct. 17, 2022. Efrem Lukatsky/AP hide caption
Emergency workers clear debris from the crater of a missile strike at a bus stop in a residential area of Dnipro, Ukraine. Missiles struck multiple cities across the country Monday morning. Kat Lonsdorf/NPR hide caption
U.S. Secretary of State Antony Blinken talks with Marina, 6, from Ukraine's Kherson region, during his visit to a children's hospital in Kyiv on Thursday. Genya Savilov/Pool/AFP via Getty Images hide caption
Kyiv Mayor Vitali Klitschko speaks in March in front of an apartment building that was shelled by Russian forces. Klitschko, a former world heavyweight boxing champion, has been mayor of Kyiv since 2014. Sergei Supinsky/AFP via Getty Images hide caption
Firefighters work to rescue residents and put out a fire after a Russian missile hit an apartment building in Ukraine's capital Kyiv on Sunday morning. As President Biden and other leaders of the Group of 7 nations meet in Germany, Russia has unleashed a barrage of airstrikes across Ukraine over the weekend. Nariman El-Mofty/AP hide caption
Pavlo Rebenko, a Ukrainian war crimes prosecutor, enters the rubble around a house to look at a human skeleton in Moshchun, Ukraine. Claire Harbage/NPR hide caption
A music supply store in Bucha lies in ruins after being shelled by Russian forces on March 3. In another part of the same shopping pavilion, other stores, including the Yanta Market coffee shop, are reopening. Jason Beaubien/NPR hide caption
Bono, Taras Topolia and "The Edge" perform at a subway station-turned-bomb shelter in the Ukrainian capital of Kyiv on Sunday. Sergei Supinsky/AFP via Getty Images hide caption
People ride scooters in Kyiv past buildings that were damaged by Russian a missile strike last week. Claire Harbage/NPR hide caption
U.N. Secretary-General António Guterres walks with security personnel as his visits Borodyanka, a town outside Kyiv, Ukraine, that was devastated by a Russian attack and occupation on Thursday. Russia sent a deadly attack into Kyiv as Guterres visited. Sergei Supinsky/AFP via Getty Images hide caption
People walk in a city park around a Soviet-era monument in Kyiv, Ukraine, in June 2020. Efrem Lukatsky/AP hide caption
A Ukrainian priest blesses believers as they collect traditional cakes and painted eggs prepared for an Easter celebration in the in Lviv, Ukraine, Saturday, April 23, 2022. Mykola Tys/AP hide caption
Nadiia Yerkhimovych, 89, at her apartment in Kyiv, Ukraine, on March 26. She's been bedridden during the Russian invasion that began in late February. From her home, she could hear the sounds of airstrikes and shelling. Carol Guzy hide caption
Aleksandra Makoviy said she isn't the only Ukrainian mother to write emergency contact info on their children since the war began. Aleksandra Makoviy hide caption
Ukrainian servicemen ride on a fighting vehicle outside Kyiv on Saturday. Russian forces are retreating from the capital's region as they turn their firepower to the south and east. Vadim Ghirda/AP hide caption
A Ukrainian soldier stands in front of a destroyed Russian armored personnel carrier in a village on the frontline of the northern part of the Kyiv region on Monday. Russia says its troops are starting to withdraw from Kyiv, thought the Pentagon believes they will likely be deployed elsewhere in Ukraine. Anatolii Stepanov/AFP via Getty Images hide caption
The Lysenko family escaped last week from their besieged home city of Chernihiv. The mayor says the city is "being wiped off the map." Elissa Nadworny/NPR hide caption