Ukrainian servicemen of the 42nd Separate Mechanized Brigade wait for a combat work inside a dugout at a position near a border, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine on May 16, 2024. (Photo by Valentyn Ogirenko/Reuters)





Servicemen of the “Achilles” Battalion from the 92nd assault brigade of the Ukrainian Army check a Vampire hexacopter drone after mission flight over a frontline near Chasiv Yar, Donetsk region, on May 1, 2024, amid the Russian invasion of Ukraine. These drones are almost exclusively used at night to drop munitions on Russian targets or supplies and medical necessities to Ukrainian soldiers on the frontline. (Photo by Genya Savilov/AFP Photo)





A Ukrainian military medic of the 47th Brigade treats his injured comrades at the field hospital in Avdiivka direction, Donetsk region, Ukraine, Friday, May 10, 2024. (Photo by Evgeniy Maloletka/AP Photo)





Ukrainian serviceman Andrii, left, of the Air Assault Forces 148th separate artillery brigade, sends receiving coordinates for a Furia drone at the frontline in Donetsk region, Ukraine, Thursday May 9, 2024. (Photo by Evgeniy Maloletka/AP Photo)





A mortar unit with a 120 mm mortar prepares to perform a combat mission on May 18, 2024 in the Kharkiv region, near the border with Russia. Ukrainian soldiers from the 92nd assault brigade were involved in holding back the Russians on the border with Russia. In recent days Russian forces have gained ground around the Kharkiv region, which Ukraine had largely reclaimed in the months following Russia's initial large-scale invasion in February 2022. (Photo by Kostiantyn Liberov/Libkos/Getty Images)





A Ukrainian soldier, aka Borchik, of the ACHILLES battalion of the 92nd brigade, operates a suicide FPV drone over Russian positions in Kharkiv region, Ukraine, Sunday, May 12, 2024. (Photo by Evgeniy Maloletka/AP Photo)





Ukrainian servicemen patrol an area heavily damaged by Russian military strikes, amid Russia's attack on Ukraine, in the town of Orikhiv in Zaporizhzhia region, Ukraine on May 20, 2024. (Photo by Reuters/Stringer)





A Ukrainian serviceman patrols an area heavily damaged by Russian military strikes, amid Russia's attack on Ukraine, in the town of Orikhiv in Zaporizhzhia region, Ukraine on May 20, 2024. (Photo by Reuters/Stringer)





Ukrainian soldiers carry the coffin of Ukrainian serviceman Taras Osmyakevych, who was killed in action, during a funeral ceremony in Lviv on May 2, 2024, amid the Russian invasion of Ukraine. (Photo by Yuriy Dyachyshyn/AFP Photo)





A local resident rides a bicycle past an Ukrainian army anti-drone unit, in Avdiivka direction, Ukraine, Monday, May 6, 2024. (Photo by Francisco Seco/AP Photo)





The 37th separate brigade of marines performs a combat mission in support of the infantry on the left bank of the Dnipro. Ukrainian soldiers operate a 2S1 Gvozdika (”Carnation”) self-propelled howitzer on April 27, 2024 in Kherson region, Ukraine. The Soviet-era gun uses 122mm shells, which Ukraine procures from abroad. The Ukrainian government has told its Western allies that it is in desperate need of weapons and ammunition as it defends itself from the large-scale attack that Russia launched in February 2022. (Photo by Kostiantyn Liberov/Libkos/Getty Images)





A Ukrainian mortar crew in the last decade of April 2024 fires a 120mm round at the Russian positions as soldiers defend the city situated halfway between Bakhmut and Kostyantynivka, which has become the primary target of Russian attacks. (Photo by Anadolu/Getty Images)





Members of the company tactical group “Steppe Wolves” of the Voluntary Formation of the Zaporizhzhia Territorial Community prepare a handmade small MLRS for firing toward Russian troops near a front line, amid Russia's attack on Ukraine, in Zaporizhzhia region, Ukraine on April 27, 2024. (Photo by Reuters/Stringer)





Ukrainian servicemen turn over a damaged car at the scene of a Russian missile attack in Zaporizhzhia, Ukraine, Wednesday, May 8, 2024. (Photo by Andriy Andriyenko/AP Photo)





Ukrainian soldiers conduct assault training at an undetermined location in Donetsk Oblast, Ukraine on May 18, 2024. (Photo by Diego Herrera Carcedo/Anadolu via Getty Images)