Ukrainian serviceman Valerii looks on at a position in a frontline, amid Russia's attack on Ukraine, in Mykolaiv region, Ukraine on October 26, 2022. (Photo by Valentyn Ogirenko/Reuters)

A Ukrainian serviceman of the 3rd Assault Brigade fires a 122mm mortar towards Russian positions at the front line, near Bakhmut, Donetsk region, Ukraine, Sunday, July 2, 2023. (Photo by Alex Babenko/AP Photo)

A Ukrainian serviceman of the 53rd brigade fires a RPG-9 towards Russian positions at the frontline close to Donetsk, Ukraine, Saturday, August 19, 2023. (Photo by Libkos/AP Photo)

Artem, a serviceman of infantry battalion of the 61st mechanised brigade, pets a dog in a trench at a position near the frontline, in Kharkiv region, Ukraine on January 6, 2024. (Photo by Sofiia Gatilova/Reuters)

A United aircraft rolls over the highway to its parking position after landing at the airport in Frankfurt, Germany, Thursday, February 15, 2024. (Photo by Michael Probst/AP Photo)

Ukrainian soldiers of the 71st Jaeger Brigade fire a M101 howitzer towards Russian positions at the frontline, near Avdiivka, Donetsk region, Ukraine, Friday, March 22, 2024. (Photo by Efrem Lukatsky/AP Photo)

A Ukrainian serviceman smokes a cigarette at his position at the frontline near Bakhmut, Donetsk region, Ukraine, Wednesday, January 11, 2023. (Photo by Evgeniy Maloletka/AP Photo)

Members of the Iraqi Army fire towards Islamic State militant positions at the south of Mosul, Iraq December 10, 2016. (Photo by Alaa Al-Marjani/Reuters)