Members of a mobile air defence volunteer unit fire a machine gun and an assault rifle to shoot down an unmanned aerial vehicle during the most massive Russian drone strike, amid Russia's attack on Ukraine, in Kyiv region, Ukraine on May 18, 2025. (Photo by Stanislav Kozliuk/Reuters)





A foreign service member of 13th Operative Purpose Brigade “Khartiia” of the National Guard of Ukraine rests as he takes part in an exercise, in Kharkiv region, Ukraine on May 20, 2025. (Photo by Anatolii Stepanov/Reuters)





Ukrainian servicemen of the Unmanned Systems Battalion of the 10th Edelweiss Separate Mountain Assault Brigade of the Ukrainian Armed Forces prepare a Darts strike drone for flight over positions of Russian troops, in Donetsk region, Ukraine on April 22, 2025. (Photo by Anatolii Stepanov/Reuters)





Ukrainian servicemen from the 24th mechanized brigade prepare a Magura night drone to flight toward the front line in the area of Chasiv Yar, Donetsk region late on April 29, 2025, amid the Russian invasion of Ukraine. (Photo by Genya Savilov/AFP Photo)





Oleksandr, 33, a Ukrainian serviceman of the 72nd Chorni Zaporozhtsi Separate Mechanized Brigade of the Ukrainian Armed Forces with the call sign 'Mikha', operates a first-person view (FPV) drone towards Russian troops, during the unilaterally proposed three-day ceasefire declared by Russia, amid Russia's attack on Ukraine, near a frontline in Dnipropetrovsk region, Ukraine on May 8, 2025. (Photo by Alina Smutko/Reuters)





Servicemen from anti-drone mobile air defence unit of 115th Separate Mechanized Brigade of the Ukrainian Armed Forces are seen at their position, amid Russia's attack on Ukraine, in Donetsk region, Ukraine on April 15, 2025. (Photo by Anatolii Stepanov/Reuters)





A young Ukrainian soldier from the 127th Brigade in the trenches near the border with Russia on April 18, 2025. (Photo by David Allignon/ZUMA Press Wire/Rex Features/Shutterstock)





A serviceman of the 141st Separate Mechanized Brigade of the Ukrainian Armed Forces prepares 2S1 Gvozdika self-propelled howitzer for firing towards Russian troops, at a position in a front line, amid Russia's attack on Ukraine, in Donetsk region, Ukraine on May 13, 2025. (Photo by Reuters/Stringer)





Young recruits of the 72nd Chorni Zaporozhtsi Separate Mechanized Brigade of the Ukrainian Armed Forces attend an exercise, amid Russia's attack on Ukraine, in Kyiv region, Ukraine on April 5, 2025. Ukraine's Defence Ministry launched a recruitment drive for young people, 18- to 24-year-olds, to serve in the military for a year for the equivalent of about $24,000 and hefty bonuses. (Photo by Gleb Garanich/Reuters)





Ukrainian gunner callsign “Vojak” looks on during an interview at a position where an artillery crew of the National Guard 3rd Operational “Spartan” Brigade mans a Bohdana self-propelled howitzer at an undisclosed location in the Donetsk frontline, part of the Pokrovsk defence line in Ukraine, on April 6, 2025. (Photo by Violeta Santos Moura/Reuters)





A service member of the 115th Separate Mechanized Brigade of the Ukrainian Armed Forces prepares mortar shells before they are fired at Russian troops, at a position in a front line, amid Russia's attack on Ukraine, in Donetsk region, Ukraine on May 16, 2025. (Photo by Sofiia Gatilova/Reuters)





Members of Ukraine's White Angel unit check an area for residents in the frontline town of Pokrovsk in Donetsk region, Ukraine, on May 21, 2025. According to a recent police report, 1,915 people remain in the city, once home to a coking coal mine and some 60,000 people. (Photo by Anatolii Stepanov/Reuters)





Ukrainian servicemen from the anti-drone mobile air defence unit of 115th Separate Mechanized Brigad at their position in Donetsk region, Ukraine on April 15, 2025. (Photo by Anatolii Stepanov/Reuters)





A serviceman of Ukraine's 49th Separate Assault Battalion Carpathian Sich pets a cat as he rests at his frontline position, near the town of Toretsk, Donetsk region, Ukraine on April 7, 2025. (Photo by Anatolii Stepanov/Reuters)





A serviceman of Ukraine's 49th Separate Assault Battalion Carpathian Sich repairs a T-80 tank captured earlier from Russian troops, in Donetsk region, Ukraine on April 14, 2025. (Photo by Anatolii Stepanov/Reuters)