Ukrainian servicemen take rest in a recently retaken village north of Kharkiv, east Ukraine, Sunday, May 15, 2022. (Photo by Mstyslav Chernov/AP Photo)





A Donetsk People's Republic militia serviceman speak on a communication device prior to fire with a multiple rocket launcher from its position not far from Panteleimonivka, in territory under the government of the Donetsk People's Republic, eastern Ukraine, Saturday, May 28, 2022. (Photo by Alexei Alexandrov/AP Photo)





A slogan and crosses are painted on the helmet of a Ukrainian serviceman in Ruska Lozova, a village retaken by the Ukrainian forces, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine on May 16, 2022. (Photo by Ricardo Moraes/Reuters)





Servicemen of Ukrainian Territorial Defence Forces take part in a demining training, amid Russia's invasion of Ukraine, north of Zhytomyr region, Ukraine on May 4, 2022. (Photo by Viacheslav Ratynskyi/Reuters)





Ukrainian service members ride on top of a military vehicle, amid Russia's invasion of Ukraine, on the road between Kostiantynivka and Bakhmut, in the Donetsk region, Ukraine on May 28, 2022. (Photo by Carlos Barria/Reuters)





A Ukrainian servicewoman Nataliia looks out of a trench at a position near a frontline, as Russia's attack on Ukraine continues, in Donetsk Region, Ukraine on May 29, 2022. (Photo by Serhii Nuzhnenko/Reuters)





A service member of pro-Russian troops takes a rest during Ukraine-Russia conflict in the town of Popasna in the Luhansk Region, Ukraine on May 26, 2022. (Photo by Alexander Ermochenko/Reuters)





A serviceman of Donetsk People's Republic militia walks along a trench at the position not far from a frontline outside Vasylivka village in Yasynuvata district in territory under the government of the Donetsk People's Republic, eastern Ukraine, Monday, May 16, 2022. (Photo by Alexei Alexandrov/AP Photo)





In this photo provided by Azov Special Forces Regiment of the Ukrainian National Guard Press Office, A Ukrainian woman soldier inside the ruined Azovstal steel plant take a rest in his shelter in Mariupol, Ukraine, May 10, 2022. For nearly three months, Azovstal’s garrison clung on, refusing to be winkled out from the tunnels and bunkers under the ruins of the labyrinthine mill. A Ukrainian soldier-photographer documented the events and sent them to the world. Now he is a prisoner of the Russians. His photos are his legacy. (Photo by Dmytro Kozatsky/Azov Special Forces Regiment of the Ukrainian National Guard Press Office via AP Photo)





Ukrainian soldiers Yashka and Olga embrace while the convoy makes a stop on its way to the eastern front, near Oleksandriya, Ukraine on May 15, 2022. (Photo by Jorge Silva/Reuters)





Ukrainian servicemen walk next to a destroyed military in the village of Rus'ka Lozova, north of Kharkiv, on May 28, 2022, amid Russian invasion of Ukraine. (Photo by Genya Savilov/AFP Photo)





Ukrainian soldiers take pictures of a mural titled “Saint Javelin” dedicated to the British portable surface-to-air missile has been unveiled on the side of a Kyiv apartment block on May 25, 2022 in Kyiv, Ukraine. The artwork by illustrator and artist Chris Shaw is in reference to the Javelin missile donated to Ukrainian troops to battle against the Russian invasion. Following Russia's retreat from areas around the Ukrainian capital, signs of normal life have returned to Kyiv, with residents taking advantage of shortened curfew hours, businesses reopening, and foreign countries promising to return their diplomats. (Photo by Christopher Furlong/Getty Images)





A service member of pro-Russian troops stands guard near a temporary accommodation centre for evacuees during Ukraine-Russia conflict in the village of Bezimenne in the Donetsk Region, Ukraine May 1, 2022. (Photo by Alexander Ermochenko/Reuters)





A Ukrainian serviceman patrols during a reconnaissance mission in a recently retaken village on the outskirts of Kharkiv, east Ukraine, Saturday, May 14, 2022. (Photo by Mstyslav Chernov/AP Photo)





Ukrainian servicemen walk to their positions near the Zaytseve village of the Donetsk region, Ukraine, 29 May 2022. On 24 February, Russian troops invaded Ukrainian territory starting a conflict that has provoked destruction and a humanitarian crisis. According to the UNHCR, more than 6.5 million refugees are estimated to have fled Ukraine, and a further seven million people estimated to have been displaced internally within Ukraine since. (Photo by EPA/EFE/Stringer)