In this photo provided by the Ukrainian Presidential Press Office, Ukrainian President Volodymyr Zelenskyy, right, stands along servicemen during a minute of silence in honor of soldiers killed during fighting with Russian troops as he visits the Donetsk region, Ukraine, Tuesday, May 23, 2023. (Ukrainian Presidential Press Office via AP)

In this photo provided by the Ukrainian Presidential Press Office, Ukrainian president Volodymyr Zelenskyy shakes hands with a service woman during an awarding ceremony as he visits the Donetsk region, Ukraine, Tuesday, May 23, 2023. (Ukrainian Presidential Press Office via AP)

In this photo provided by the Ukrainian Presidential Press Office, Ukrainian president Volodymyr Zelenskyy shakes hands with a serviceman during an awarding ceremony as he visits the Donetsk region, Ukraine, Tuesday, May 23, 2023. (Ukrainian Presidential Press Office via AP)

In this photo provided by the Ukrainian Presidential Press Office, Ukrainian president Volodymyr Zelenskyy, centre, poses for photo with soldiers after an awarding ceremony as he visits the Donetsk region, Ukraine, Tuesday, May 23, 2023. (Ukrainian Presidential Press Office via AP)

In this photo provided by the Ukrainian Presidential Press Office, Ukrainian soldiers line up as they attend an awarding ceremony during Ukrainian president Volodymyr Zelenskyy's visit to the Donetsk region, Ukraine, Tuesday, May 23, 2023. (Ukrainian Presidential Press Office via AP)

In this photo provided by the Ukrainian Presidential Press Office, Ukrainian president Volodymyr Zelenskyy, second right, listens to military commander as he visits the Donetsk region, Ukraine, Tuesday, May 23, 2023. (Ukrainian Presidential Press Office via AP)

In this photo provided by the Ukrainian Presidential Press Office, Ukrainian president Volodymyr Zelenskyy, centre, poses for photo with soldiers after an awarding ceremony as he visits the Donetsk region, Ukraine, Tuesday, May 23, 2023. (Ukrainian Presidential Press Office via AP)

This handout picture taken and released by Ukrainian Presidential press-service on May 23, 2023 shows the Ukrainian President Volodymyr Zelensky decorating a serviceman during his visit the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / UKRAINE PRESIDENCY / AFP)

This handout picture taken and released by Ukrainian Presidential press-service on May 23, 2023 shows the Ukrainian President Volodymyr Zelensky decorating a serviceman during his visit the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / UKRAINE PRESIDENCY / AFP)

This handout picture taken and released by Ukrainian Presidential press-service on May 23, 2023 shows the Ukrainian President Volodymyr Zelensky (L) decorating a servicewoman during his visit the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / UKRAINE PRESIDENCY / AFP)

This handout picture taken and released by Ukrainian Presidential press-service on May 23, 2023 shows the Ukrainian President Volodymyr Zelensky (R) decorating a servicewoman during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / UKRAINE PRESIDENCY / AFP)

This handout picture taken and released by Ukrainian Presidential press-service on May 23, 2023 shows the Ukrainian President Volodymyr Zelensky (R) decorating a serviceman during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / UKRAINE PRESIDENCY / AFP)

This handout picture taken and released by Ukrainian Presidential press-service on May 23, 2023 shows the Ukrainian President Volodymyr Zelensky (R) decorating a servicewoman during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / UKRAINE PRESIDENCY / AFP)

This handout picture taken and released by Ukrainian Presidential press-service on May 23, 2023 shows the Ukrainian President Volodymyr Zelensky (L) decorating a serviceman during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / UKRAINE PRESIDENCY / AFP)

This handout picture taken and released by Ukrainian Presidential press-service on May 23, 2023 shows the Ukrainian President Volodymyr Zelensky (C) posing with serviceman during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / UKRAINE PRESIDENCY / AFP)

This handout photograph taken and released by Ukrainian Presidential press-service on May 23, 2023 shows President of Ukraine Volodymyr Zelensky (R) bowing his head in mourning for the dead military personnel during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / UKRAINE PRESIDENCY / AFP)

This handout photograph taken and released by Ukrainian Presidential press-service on May 23, 2023 shows President of Ukraine Volodymyr Zelensky (C) posing for a photograph with two servicemen he decorated during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / UKRAINE PRESIDENCY / AFP)

This handout photograph taken and released by Ukrainian Presidential press-service on May 23, 2023 shows the Ukrainian President Volodymyr Zelensky (CL) posing for the picture with servicemen he decorated during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / AFP)

This handout photograph taken and released by Ukrainian Presidential press-service on May 23, 2023 shows the Ukrainian President Volodymyr Zelensky (CR) talking with officers during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / AFP)

This handout photograph taken and released by Ukrainian Presidential press-service on May 23, 2023 shows servicemen taking part in a ceremony on the occasion of Marine Day in the presence of the President of Ukraine Volodymyr Zelensky (not pictured) during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / AFP)

This handout photograph taken and released by Ukrainian Presidential press-service on May 23, 2023 shows servicemen taking part in a ceremony on the occasion of Marine Day in the presence of the President of Ukraine Volodymyr Zelensky (not pictured) during his visit to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / AFP)

This handout photograph taken and released by the Ukrainian Presidential press-service on May 23, 2023 shows servicemen on guard during the visit of the President of Ukraine Volodymyr Zelensky (not pictured) to the forward positions of the Armed Forces of Ukraine in the Vugledar-Maryinka defense zone, Donetsk region, on the occasion of the Marine Day, amid the Russian invasion of Ukraine. (Photo by Handout / AFP)

KYIV, UKRAINE - MAY 23: (----EDITORIAL USE ONLY - MANDATORY CREDIT - 'UKRAINIAN PRESIDENCY / HANDOUT' - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----) Ukrainian President Volodymyr Zelenskyy (L) presents the State Medal to Ukrainian soldiers at the Donetsk Oblast in Kyiv, Ukraine on May 23, 2023. Ukrainian Presidency / Anadolu Agency/ABACAPRESS.COM

KYIV, UKRAINE - MAY 23: (----EDITORIAL USE ONLY - MANDATORY CREDIT - 'UKRAINIAN PRESIDENCY / HANDOUT' - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----) Ukrainian President Volodymyr Zelenskyy (C) poses for a photo with Ukrainian soldiers at the Donetsk Oblast in Kyiv, Ukraine on May 23, 2023. Ukrainian Presidency / Anadolu Agency/ABACAPRESS.COM

KYIV, UKRAINE - MAY 23: (----EDITORIAL USE ONLY - MANDATORY CREDIT - 'UKRAINIAN PRESIDENCY / HANDOUT' - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----) Ukrainian President Volodymyr Zelenskyy (R) presents the State Medal to Ukrainian soldiers at the Donetsk Oblast in Kyiv, Ukraine on May 23, 2023. Ukrainian Presidency / Anadolu Agency/ABACAPRESS.COM

KYIV, UKRAINE - MAY 23: (----EDITORIAL USE ONLY - MANDATORY CREDIT - 'UKRAINIAN PRESIDENCY / HANDOUT' - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----) Ukrainian President Volodymyr Zelenskyy (R) presents the State Medal to Ukrainian soldiers at the Donetsk Oblast in Kyiv, Ukraine on May 23, 2023. Ukrainian Presidency / Anadolu Agency/ABACAPRESS.COM

KYIV, UKRAINE - MAY 23: (----EDITORIAL USE ONLY - MANDATORY CREDIT - 'UKRAINIAN PRESIDENCY / HANDOUT' - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----) Ukrainian President Volodymyr Zelenskyy (R) presents the State Medal to Ukrainian soldiers at the Donetsk Oblast in Kyiv, Ukraine on May 23, 2023. Ukrainian Presidency / Anadolu Agency/ABACAPRESS.COM

KYIV, UKRAINE - MAY 23: (----EDITORIAL USE ONLY - MANDATORY CREDIT - 'UKRAINIAN PRESIDENCY / HANDOUT' - NO MARKETING NO ADVERTISING CAMPAIGNS - DISTRIBUTED AS A SERVICE TO CLIENTS----) Ukrainian President Volodymyr Zelenskyy (C) presents the State Medal to Ukrainian soldiers at the Donetsk Oblast in Kyiv, Ukraine on May 23, 2023. Ukrainian Presidency / Anadolu Agency/ABACAPRESS.COM