A priest sprinkles holy water on a believer during the Orthodox Easter service in the Holy Transfiguration Cathedral in the rebel-controlled city of Donetsk, Ukraine on May 2, 2021. (Photo by Alexander Ermochenko/Reuters)

Ukrainian service members walk to an armoured personnel carrier outside of the frontline town of Bakhmut, amid Russia's attack on Ukraine, in Donetsk region, Ukraine on May 23, 2023. (Photo by Yevhenii Zavhorodnii/Reuters)

Ukrainian servicemen fire toward Russian troops with a tank at a position in Donetsk region, as Russia's attack on Ukraine continues, Ukraine on August 12, 2022. (Photo by Reuters/Stringer)

A Ukrainian service member smokes near a frontline, amid Russia's attack on Ukraine, in Donetsk region, Ukraine on February 8, 2023. (Photo by Yevhenii Zavhorodnii/Reuters)

A pro-Russian rebel guards a captured former Ukrainian Army checkpoint outside Vuhlehirsk, Donetsk region, eastern Ukraine, Thursday, February 5, 2015. The rebels have closed in around the town in a strategy they triumphantly refer to as the Debaltseve cauldron. Separatists recently burst through government lines in the rural settlement of Vuhlehirsk. (Photo by Vadim Braydov/AP Photo)

Ukrainian soldiers fire with D-30 artillery at Russian positions in the direction of Klishchiivka as the Russia-Ukraine war continues in Donetsk Oblast, Ukraine on August 12, 2023. (Photo by Diego Herrera Carcedo/Anadolu Agency via Getty Images)

People carry bags containing their belongings past a burning residential block, caused by a recent shelling according to locals, on the outskirts of Donetsk, eastern Ukraine February 9, 2015. (Photo by Maxim Shemetov/Reuters)

A Ukrainian serviceman smokes a cigarette at his position at the frontline near Bakhmut, Donetsk region, Ukraine, Wednesday, January 11, 2023. (Photo by Evgeniy Maloletka/AP Photo)