A Ukrainian police officer takes cover in front of a burning building that was hit in a Russian airstrike in Avdiivka, Ukraine, Friday, March 17, 2023. (Photo by Evgeniy Maloletka/AP Photo)

Commander of the Joint Forces of the Armed Forces of Ukraine Serhiy Nayev holds puppies as he visits at positions near the border with Belarus, amid Russia's attack on Ukraine, in Zhytomyr region, Ukraine on September 20, 2023. (Photo by Gleb Garanich/Reuters)

Ukrainian servicemen of the State Border Guard Service wait for an order to move to the mortar position at the entrance of the shelter in Bakhmut on February 16, 2023, as the head of Russia's mercenary outfit Wagner said it could take months to capture the embattled Ukraine city and slammed Moscow's “monstrous bureaucracy” for slowing military gains. (Photo by Yasuyoshi Chiba/AFP Photo)

A Ukrainian serviceman kisses his partner at the train station in Kramatorsk, Ukraine, Thursday, March 23, 2023. (Photo by Evgeniy Maloletka/AP Photo)

A Ukrainian serviceman wearing a new year's hat waves at his comrades while standing beside his tank near Debaltseve, eastern Ukraine, February 8, 2015. (Photo by Gleb Garanich/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)

A slogan and crosses are painted on the helmet of a Ukrainian serviceman in Ruska Lozova, a village retaken by the Ukrainian forces, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine on May 16, 2022. (Photo by Ricardo Moraes/Reuters)

Military chaplain Yurii looks on in a trench after an Orthodox Easter service for Ukrainian servicemen at their position, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine on April 15, 2023. (Photo by Sofiia Gatilova/Reuters)