Servicemen of the newly created National Guard unit train in the Kharkiv region, Ukraine, Thursday, June 1, 2023. (Photo by Andrii Marienko/AP Photo)





Ukrainian servicemen of a Reconnaissance team fly a drone at a front line near the town of Bakhmut, Donetsk region on May 8, 2023, amid the Russian invasion of Ukraine. (Photo by Sergey Shestak/AFP Photo)





Ukrainian prisoners of war (POWs) are seen after a swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine on May 25, 2023. (Photo by Yevhenii Zavhorodnii/Reuters)





Ukrainian service members ride a Mine Resistant Ambush Protected (MRAP) vehicle Bushmaster, amid Russia's attack on Ukraine, near the front line city of Bakhmut, Donetsk region, Ukraine on May 30, 2023. (Photo by Anna Kudriavtseva/Reuters)





A Ukrainian service member is seen, amid Russia's attack on Ukraine, near the front line near the newly liberated village Neskuchne in Donetsk region, Ukraine on June 13, 2023. (Photo by Oleksandr Ratushniak/Reuters)





A Ukrainian officer prepares to fire in a German self-propelled Panzerhaubitze 2000 artillery at his position on the frontline in Bakhmut, Donetsk region, Ukraine, Saturday, May 27, 2023. (Photo by Efrem Lukatsky/AP Photo)





A Ukrainian soldier covers his ears while firing a mortar at Russian positions on the frontline near Bakhmut, Donetsk region, Ukraine, Monday, May 29, 2023. (Photo by Efrem Lukatsky/AP Photo)





A Ukrainian serviceman steers a boat in a flooded neighborhood in Kherson, Ukraine, Thursday, June 8, 2023. Floodwaters from a collapsed dam kept rising in southern Ukraine on Wednesday, forcing hundreds of people to flee their homes in a major emergency operation that brought a dramatic new dimension to the war with Russia, now in its 16th month. (Photo by Evgeniy Maloletka/AP Photo)





Ukrainian soldiers prepare to open fire on Russian positions to protect the defensive line on the frontline towards the city of Avdiivka, Donetsk Oblast, Ukraine on June 02, 2023. (Photo by Muhammed Enes Yıldırım/Anadolu Agency via Getty Images)





Ukrainian soldiers smile as they ride in a pickup van on the frontline near Bakhmut, the site of fierce battles with the Russian troops in the Donetsk region, Ukraine, Monday, June 5, 2023. Writing on the car reads UAF (Ukrainian Armed Forces). (Photo by Iryna Rybakova via AP Photo)





A Ukrainian soldier drinks water on the frontline near Kreminna, Luhansk region, Ukraine, Thursday, June 8, 2023. (Photo by Roman Chop via AP Photo)





A Ukrainian army, German self-propelled Panzerhaubitze 2000, artillery drives to its position at the frontline near Bakhmut, Donetsk region, Ukraine, Saturday, May 27, 2023. (Photo by Efrem Lukatsky/AP Photo)





Ukrainian military learn to fly winged drones at a special school on May 9, 2023 in Lviv region Ukraine. The school is funded by KOLO, a Ukranian foundation running a pilot school of drones and UAV's for the military. Drones are essential in the war effort now for many reasons, instructors are in demand as the effort continues to train more military, police and special forces. (Photo by Paula Bronstein/Getty Images)





A couple embraces at the railway station in Kramatorsk, on May 20, 2023, amid the Russian invasion of Ukraine. (Photo by Sergey Shestak/AFP Photo)





An officer of Ukraine's 59th Motorized Brigade controls a drone from a shelter in the suburbs of Donetsk, the site of fierce battles with the Russian forces, Ukraine, Friday, May 26, 2023. (Photo by Efrem Lukatsky/AP Photo)