A serviceman of the 93rd Kholodnyi Yar Separate Mechanized Brigade of the Ukrainian Armed Forces checks the sky as he looks out for Russian combat drones, amid Russia's attack on Ukraine, near the frontline town of Kostiantynivka in Donetsk region, Ukraine on November 27, 2025. (Photo by Reuters/Stringer)




Servicemen of the 148th Separate Artillery Zhytomyr Brigade of the Armed Forces of Ukraine fire a Caesar self-propelled howitzer towards Russian troops at a position on the front line, amid Russia's attack on Ukraine, near the frontline town of Pokrovsk in Donetsk region, Ukraine on November 23, 2025. (Photo by Anatolii Stepanov/Reuters)




Ukrainian servicemen walk near an apartment building damaged by a Russian military strike in the frontline town of Kostiantynivka in the Donetsk region, Ukraine, on November 1, 2025. (Photo by Yan Dobronosov/Reuters)




A Ukrainian commander, callsign Fidel of the 14th Separate Unmanned Aerial Systems Regiment, looks through night vision before takeoff, long-range drones An-196 Liutyi towards Russia in an undisclosed location, Ukraine, Tuesday, October 14, 2025. (Phoot by Evgeniy Maloletka/AP Photo)




In this handout photograph taken by the press service of the 24th Mechanized Brigade of Ukrainian Armed Forces on November 15, 2025 and released on November 17, 2025, a Ukrainian serviceman stands among the rubble in the courtyard of a destroyed residential building in the frontline town of Kostyantynivka, Donetsk region, amid the Russian invasion of Ukraine. (Photo by Oleg Petrasiuk/24th Mechanized Brigade of Ukrainian Armed Forces/AFP Photo)




In this handout photograph taken on November 15, 2025 and released on November 16, 2025 by the press service of the 65th Mechanized Brigade of Ukrainian Armed Forces, a Colombian volunteer soldier pets a cat at an undisclosed location in Zaporizhzhia region, amid the Russian invasion of Ukraine. (Photo by Andriy Andriyenko/65th Mechanized Brigade of Ukrainian Armed Forces/AFP Photo)




A brother-in-arm of Nolan Durie, 21-year-old Canadian and serviceman of a foreign volunteer unit of the 3rd Separate Assault Brigade, who was killed in on the front line in a fight against Russian troops, reacts as he attends a farewell ceremony for him, in Kyiv, Ukraine on November 3, 2025. (Photo by Alina Smutko/Reuters)




A Ukrainian serviceman stands near an apartment building damaged by a Russian military strike, amid Russia's attack on Ukraine, in the frontline town of Kostiantynivka in Donetsk region, Ukraine on November 15, 2025. (Photo by Oleg Petrasiuk/Press Service of the 24th King Danylo Separate Mechanized Brigade of the Ukrainian Armed Forces/Handout via Reuters)




Students at the Kharkiv Regional Center for Training Citizens for National Resistance undergo tactical training in field conditions in Kharkiv region, Ukraine on November 15, 2025. During these classes, students work in small groups to develop practical skills in tactical and firearms training, mine safety, military topography, and other subjects included in the civilian training program. Students in the state civilian training program include school teachers, municipal employees, community activists, and others. (Photo by Serhii Masin/Anadolu via Getty Images)




Servicemen of the 93rd Kholodnyi Yar Separate Mechanized Brigade of the Ukrainian Armed Forces load in a pickup truck after a combat mission, amid Russia's attack on Ukraine, near the frontline town of Kostiantynivka in Donetsk region, Ukraine on November 27, 2025. (Photo by Reuters/Stringer)




This handout photograph taken on October 25, 2025, and released on November 4, 2025, by the Press Service of the 24th Mechanized Brigade of Ukrainian Armed Forces shows a serviceman of a motorized infantry battalion walking at the front line position near the town of Chasiv Yar in the Donetsk region, amid the Russian invasion of Ukraine. (Photo by Handout/24th Mechanized Brigade of Ukrainian Armed Forces/AFP Photo)




Servicemen of the 49th Separate Assault Battalion Carpathian Sich of the Armed Forces of Ukraine rest in a dugout at a position in the frontline town of Kostiantynivka in Donetsk region, Ukraine on December 7, 2025. (Photo by Anatolii Stepanov/Reuters)




A serviceman of the 148th Separate Artillery Zhytomyr Brigade of the Armed Forces of Ukraine prepares tea in a dugout at a position on the front line, amid Russia's attack on Ukraine, near the frontline town of Pokrovsk in Donetsk region, Ukraine November 23, 2025. (Photo by Anatolii Stepanov/Reuters)




In this handout photograph taken by the press service of the 24th Mechanized Brigade of Ukrainian Armed Forces on November 28, 2025 and released on December 1, 2025, a Ukrainian serviceman walks among debris past destoyed buildings in the frontline town of Kostyantynivka, Donetsk region, amid the Russian invasion of Ukraine. (Photo by Oleg Petrasiuk/24th Mechanized Brigade of Ukrainian Armed Forces/AFP Photo)




A Ukrainian serviceman of the Da Vinci Wolves Battalion carries an artillery shell before firing toward Russian positions at the front line in eastern Ukraine, on Friday, Nov. 28, 2025. (Photo by A Ukrainian serviceman of the Da Vinci Wolves Battalion carries an artillery shell before firing toward Russian positions at the front line in eastern Ukraine, on Friday, November 28, 2025. (Photo by Evgeniy Maloletka/AP Photo)