Ukrainian servicemen of the 42nd Separate Mechanized Brigade fire a 2S1 Gvozdika self-propelled howitzer towards Russian troops in a front line, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine May 16, 2024. REUTERS/Valentyn Ogirenko Photo: VALENTYN OGIRENKO/REUTERS
FILE PHOTO: Police work at a site of a Russian missile strike, amid Russia's attack on Ukraine, in the village of Zolochiv in Kharkiv region, Ukraine May 1, 2024. REUTERS/Vyacheslav Madiyevskyy/File Photo Photo: VYACHESLAV MADIYEVSKYY/REUTERS
A Ukrainian serviceman of the attack drones battalion of the Achilles, 92nd brigade carries a first-person view (FPV) drone before it flies, near a Russian border in a Kharkiv region, Ukraine May 15, 2024. REUTERS/Inna Varenytsia Photo: Inna Varenytsia/REUTERS
Ukrainian serviceman of the 42nd Separate Mechanized Brigade with the call sign 'Maestro' pets dog with the name 'Senator' at a position near a border, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine May 16, 2024. REUTERS/Valentyn Ogirenko Photo: VALENTYN OGIRENKO/REUTERS
A firefighter works at a site of a Russian missile strike, amid Russia's attack on Ukraine, near Odesa, Ukraine May 17, 2024. Press service of the State Emergency Service of Ukraine in Odesa region/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. MUST NOT OBSCURE LOGO Photo: State Emergency Service of Ukrai/REUTERS
FILE PHOTO: Ukrainian servicemen of the 43rd Separate Artillery Brigade fire a Panzerhaubitze 2000 self-propelled howitzer toward Russian troops, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 4, 2024. REUTERS/Valentyn Ogirenko/File Photo Photo: VALENTYN OGIRENKO/REUTERS
New recruits of the Ukrainian 93rd Kholodnyi Yar Separate Mechanized Brigade attend a military exercise at a training ground, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 11, 2024. REUTERS/Valentyn Ogirenko Photo: VALENTYN OGIRENKO/REUTERS
Smoke rises after a Russian missile strike, amid Russia's attack on Ukraine, in Kharkiv, Ukraine May 17, 2024. REUTERS/Valentyn Ogirenko Photo: VALENTYN OGIRENKO/REUTERS
FILE PHOTO: Ukrainian servicemen of the 148th Separate Artillery Brigade of the Ukrainian Air Assault Forces, fire a M777 howitzer toward Russian troops near a front line, amid Russia’s attack on Ukraine, in Donetsk region, Ukraine May 1, 2024. REUTERS/Valentyn Ogirenko/File Photo Photo: VALENTYN OGIRENKO/REUTERS
A satellite image of a destroyed Su27 fighter in its revetment following an attack at Belbek Airbase, amid Russia's attack on Ukraine, in Crimea May 16, 2024. Maxar Technologies/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. NO RESALES. NO ARCHIVES. MANDATORY CREDIT. MUST NOT OBSCURE LOGO Photo: MAXAR TECHNOLOGIES/REUTERS
A satellite image of a destroyed fuel storage facility following an attack at Belbek Airbase, amid Russia's attack on Ukraine, in Crimea May 16, 2024. Maxar Technologies/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. NO RESALES. NO ARCHIVES. MANDATORY CREDIT. MUST NOT OBSCURE LOGO Photo: MAXAR TECHNOLOGIES/REUTERS
A view shows a destroyed building and cars following what local Russian-installed authorities called a Ukrainian military strike in the settlement of Yubileiny in the Luhansk region, Russian-controlled Ukraine, in this still image from video released May 20, 2024. Leonid Pasechnik Telegram channel/Handout via REUTERS ATTENTION EDITORS - THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY. NO RESALES. NO ARCHIVES. MANDATORY CREDIT. Photo: Leonid Pasechnik Telegram channe/REUTERS
SENSITIVE MATERIAL. THIS IMAGE MAY OFFEND OR DISTURB A war crimes prosecutor and a police officer stand next to the bodies of people killed by a Russian missile strike on a resort compound in Kharkiv, amid Russia's attack on Ukraine May 19, 2024. REUTERS/Valentyn Ogirenko Photo: VALENTYN OGIRENKO/REUTERS
A war crimes prosecutor inspects a resort compound hit by a Russian missile strike in Kharkiv, amid Russia's attack on Ukraine May 19, 2024. REUTERS/Valentyn Ogirenko Photo: VALENTYN OGIRENKO/REUTERS
Police officers and emergency workers inspect a resort compound hit by a Russian missile strike, amid Russia's attack on Ukraine, in Kharkiv, Ukraine May 19, 2024. REUTERS/Valentyn Ogirenko Photo: VALENTYN OGIRENKO/REUTERS
A view shows a crater that appeared after a Russian missile strike on a structure at a resort, amid Russia's attack on Ukraine, in Kharkiv, Ukraine May 19, 2024. REUTERS/Valentyn Ogirenko Photo: VALENTYN OGIRENKO/REUTERS
Local resident Yana looks at her house damaged by a Russian air strike, amid Russia's attack on Ukraine, in Kharkiv, Ukraine May 18, 2024. REUTERS/Valentyn Ogirenko Photo: VALENTYN OGIRENKO/REUTERS
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 May 20, 2024. REUTERS/Stringer Photo: Stringer/REUTERS
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 May 20, 2024. REUTERS/Stringer Photo: Stringer/REUTERS
Ukraine's President Volodymyr Zelenskiy speaks during an interview with Reuters, amid Russia's attack on Ukraine, in Kyiv, Ukraine May 20, 2024. REUTERS/Gleb Garanich Photo: GLEB GARANICH/REUTERS
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 May 20, 2024. REUTERS/Stringer Photo: Stringer/REUTERS