Smoke and debris ascend after a strike at a factory in the city of Soledar, in eastern Ukraine's Donbas region, on Tuesday. At the three-month point since Russia launched its large-scale invasion of Ukraine, fighting has been intensifying in the east. Aris Messinis/AFP via Getty Images hide caption
Ukrainian President Volodymyr Zelenskyy receives a standing ovation after his video address on the first day of the World Economic Forum in Davos, Switzerland, on Monday. Hollie Adams/Bloomberg via Getty Images hide caption
Smoke rises after an attack on an oil refinery in the Donbas region of eastern Ukraine on Sunday. Aris Messinis/AFP via Getty Images hide caption
Russian-backed Donetsk militia fighters man "Gvozdika" (Carnation) self-propelled artillery vehicles to fire toward a Ukrainian army position outside Donetsk, in territory held by the separatist Donetsk government in eastern Ukraine, Friday. Fighting has intensified in the Donbas region this week. Alexei Alexandrov/AP hide caption
President Biden, Finland's President Sauli Niinisto and Sweden's Prime Minister Magdalena Andersson deliver remarks in the Rose Garden at the White House on Thursday. Chip Somodevilla/Getty Images hide caption
Russian army Sgt. Vadim Shishimarin, 21, is seen behind glass during a court hearing in Kyiv on Wednesday. He went on trial in Ukraine for the killing of an unarmed civilian and pleaded guilty. It is the first time a member of the Russian military has been prosecuted for a war crime since Russia invaded Ukraine in February. Efrem Lukatsky/AP hide caption
Ukraine's President Volodymyr Zelenskyy speaks via video during the opening ceremony for the 75th Cannes Film Festival in Cannes, France, on Tuesday. Andreas Rentz/Getty Images hide caption
A wounded service member of the Ukrainian forces from the besieged Azovstal steel mill in Mariupol is transported out of a bus on a stretcher under escort of pro-Russian fighters, upon arrival in Novoazovsk, Ukraine, on Monday. Alexander Ermochenko/Reuters hide caption
Russian army Sgt. Vadim Shishimarin, 21, is seen behind a glass during a court hearing in Kyiv, Ukraine, on Friday. He is accused of killing a Ukrainian civilian. The first war crimes trial since Moscow's invasion of its neighbor opened Friday. Efrem Lukatsky/AP hide caption
Finland's President Sauli Niinisto speaks during a press conference with British Prime Minister Boris Johnson at the Presidential Palace on Wednesday in Helsinki, Finland. Niinisto and Finland's Prime Minister Sanna Marin said Thursday in a joint statement that Finland must apply for NATO membership without delay. Frank Augstein/WPA Pool/Getty Images hide caption
Wives of Ukrainian soldiers holed up inside the Azovstal steel plant in Mariupol meet with Pope Francis during the weekly general audience at the Vatican, Wednesday. Vatican Media/via Reuters hide caption
An Ukrainian firefighter works near a destroyed building on the outskirts of Odesa, Ukraine, on Tuesday. The Ukrainian military said Russian forces fired seven missiles a day earlier from the air at the crucial Black Sea port of Odesa, hitting a shopping center and a warehouse. Max Pshybyshevsky/AP hide caption
People carry portraits of their relatives, including World War II soldiers, as they take part in the Immortal Regiment march on Red Square on Monday in Moscow. The event is part of Russia's Victory Day, celebrating the Soviet Union's defeat of Nazi Germany, which took on new importance with the invasion of Ukraine. Oleg Nikishin/Getty Images hide caption
A man who left a shelter in the Azovstal steel plant in Mariupol walks to a bus between Russian army servicemen and Donetsk People's Republic militia on Friday. Alexei Alexandrov/AP hide caption
Smoke rises from the Metallurgical Combine Azovstal in Mariupol, eastern Ukraine, on Thursday. Heavy fighting is raging at the besieged steel plant as Russian forces attempt to finish off the city's last-ditch defenders and complete the capture of the strategically vital port. AP hide caption
The PCK oil refinery, which is majority-owned by Russian energy company Rosneft and processes oil coming from Russia via the Druzhba pipeline, in Schwedt, Germany. Hannibal Hanschke/Getty Images hide caption
Dark smoke rises following an airstrike in the western Ukrainian city of Lviv, on Tuesday. Russia said its artillery hit hundreds of targets across the country in the past day. Yuriy Dyachyshyn/AFP via Getty Images hide caption
Hryhorii, a member of the Ukrainian military, hugs his wife Oksana, whom he had not seen for nearly a year, after she fled from the Russian-occupied Novomykhailivka village and arrived by car at an evacuation point for people fleeing Mariupol, Melitopol and the surrounding towns under Russian control, on Monday, in Zaporizhzhia, Ukraine. Chris McGrath/Getty Images hide caption
Ukrainian President Volodymyr Zelenskyy and U.S. Speaker of the House Nancy Pelosi, third from left, talk during their meeting in Kyiv on Saturday. Ukrainian Presidential Press Office via AP hide caption
A girl looks as a woman crying during a religious service to commemorate the fallen during the Russian occupation in Zdvyzhivka, on the outskirts of Kyiv, on Saturday. Emilio Morenatti/AP hide caption
Rescue servicemen extinguish a bush fire after shelling in Mykolaivka, Donetsk region, eastern Ukraine, on Friday. Evgeniy Maloletka/AP hide caption
Firefighters try to put out a fire following an explosion in Kyiv on Thursday, the same day of a visit by the head of the United Nations. Emilio Morenatti/AP hide caption