A Ukrainian soldier looks at a monitor of an electronic warfare system in a shelter to quell Russian drones at the front line, near Bakhmut, Donetsk region, Ukraine, Monday, January 29, 2024. Ukrainian forces are increasingly resorting to an age-old tactic – intelligence gleaned from radio intercepts – in a desperate effort to preserve their most vital resources. The painstaking work of eavesdropping is part of a larger effort to beef up and refine electronic warfare capabilities so that soldiers can be warned earlier of impending attacks, while having the battlefield intelligence needed to make their own strikes more deadly. (Photo by Efrem Lukatsky/AP Photo)





A Ukrainian serviceman carries a portrait of Diana Savita Wagner, a German combat medic, who joined Ukrainian Armed Forces as a volunteer and was killed by Russian troops in the country's East, during her funeral ceremony in Kyiv, Ukraine on February 14, 2024. (Photo by Valentyn Ogirenko/Reuters)





A Ukrainian serviceman checks a connection with an unmanned aerial vehicle near the front lines of the war with Russia on Friday, February 2, 2024. (Photo by Reuters/Stringer)





Ukrainian servicemen with flowers wait for the train from Kyiv, amid Russia's attack on Ukraine, at the train station in Kramatorsk, Ukraine on February 14, 2024. (Photo by Inna Varenytsia/Reuters)





Ukrainian serviceman says goodbye to his wife who was visiting him during a short break from his frontline duty, at the train station in Kramatorsk, Ukraine, on February 14, 2024. (Photo by Inna Varenytsia/Reuters)





A Ukrainian infantryman fires with an RPG from an infantry position as Russia-Ukraine war continues in the direction of Kreminna, in Donetsk Oblast, Ukraine, on February 15, 2024. (Photo by Diego Herrera Carcedo/Anadolu via Getty Images)





A Ukrainian soldier from a self-propelled artillery unit walks at a forest base near the frontline in Donetsk in the second decade of February 2024. (Photo by Kasia Stręk/The Observer)





A Ukrainian serviceman of the Rarog UAV squadron of the 24th Separate Mechanized Brigade walks at a position near the town of Horlivka, in Donetsk region, Ukraine, on January 17, 2024. (Photo by Inna Varenytsia/Reuters)





Ukrainian soldier on his way to his fighting position in the direction of Velyka Novosilka as Russia-Ukraine war continues in Donetsk Oblast, Ukraine on February 10, 2024. (Photo by Diego Herrera Carcedo/Anadolu via Getty Images)





A Ukrainian serviceman carries a Leleka reconnaissance unmanned aerial vehicle (UAV) after it flew at a front line, amid Russia's attack on Ukraine, in Zaporizhzhia region, Ukraine on February 15, 2024. (Photo by Reuters/Stringer)





A Ukrainian tankist moments before going to the frontline in the direction of Bakhmut, where clashes between Russia and Ukraine continue to take place, in Donetsk Oblast, Ukraine on January 23, 2024. (Photo by Ignacio Marin/Anadolu via Getty Images)





A Ukrainian serviceman of drone squadron Rarog of 24 separate mechanized brigade installs shells for a Vampire combat drone before flying over positions of Russian troops near the frontline town of Horlivka, amid Russia's attack on Ukraine, in Donetsk region, Ukraine on February 17, 2024. (Photo by Inna Varenytsia/Reuters)





A Ukrainian infantryman keeps the watch in the trenches on the front line, in the direction of Bakhmut, where clashes between Russia and Ukraine continue to take place, in Donetsk Oblast, Ukraine on January 19, 2024. As temperatures drop the Ukrainian soldiers keep their positions under the harsh winter conditions. (Photo by Ignacio Marin/Anadolu via Getty Images)





A Ukrainian serviceman of the attack drones battalion of the Achilles, 92nd brigade, attaches a shell to a first person view (FPV) drone at his front line position, near the town of Bakhmut in Donetsk region, Ukraine, on February 2, 2024. (Photo by Inna Varenytsia/Reuters)





A serviceman of Ukraine's coast guard mans a gun on a patrol boat as a cargo ship passes by in the Black Sea, amid Russia’s attack on Ukraine, on February 7, 2024. (Photo by Thomas Peter/Reuters)