A performance takes place during a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

A show takes place during a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

A performance takes place during a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

A show takes place during a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

People take part in a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

People take part in a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

People take part in a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

People take part in a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

People take part in a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

People take part in a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich TPX IMAGES OF THE DAY 

People take part in a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

People take part in a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

People take part in a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

People take part in a commemoration ceremony for Ukrainian prisoners of war who defended the Azovstal Iron and Steel Works in Mariupol and were killed in a prison in Olenivka, outside Donetsk, one year ago, as Russia's attack on Ukraine continues, in front of the former Russian embassy in Kyiv, Ukraine July 29, 2023. REUTERS/Gleb Garanich 

Faces of Belarusian political prisoners are painted on a graffiti in Warsaw, Poland, July 25, 2023. REUTERS/Kuba Stezycki 

People sit at a Belarusian bar next to a graffiti commemorating Ales Pushkin, a Belarusian artist and political prisoner who died this year in Belarusian jail under unexplained circumstances, in Warsaw, Poland, July 18, 2023. REUTERS/Kuba Stezycki 

Ukrainian servicemen prepare to carry a coffin with the body of a person who is considered to be former U.S. Army soldier Nicholas Maimer, killed in the frontline town of Bakhmut, after prisoners of war (POWs) swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

Ukrainian servicemen carry a coffin with the body of a person who is considered to be former U.S. Army soldier Nicholas Maimer, killed in the frontline town of Bakhmut, after prisoners of war (POWs) swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

Ukrainian servicemen carry a coffin with the body of a person who is considered to be former U.S. Army soldier Nicholas Maimer, killed in the frontline town of Bakhmut, after prisoners of war (POWs) swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

Ukrainian servicemen carry a coffin with the body of a person who is considered to be former U.S. Army soldier Nicholas Maimer, killed in the frontline town of Bakhmut, after prisoners of war (POWs) swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

Ukrainian servicemen carry a coffin with the body of a person who is considered to be former U.S. Army soldier Nicholas Maimer, killed in the frontline town of Bakhmut, after prisoners of war (POWs) swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii TPX IMAGES OF THE DAY 

Ukrainian servicemen carry a coffin with the body of a person who is considered to be former U.S. Army soldier Nicholas Maimer, killed in the frontline town of Bakhmut, after prisoners of war (POWs) swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

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

A Ukrainian prisoner of war (POW) is seen after a swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

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

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

A Ukrainian prisoner of war (POW) is seen after a swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

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

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

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

Ukrainian prisoners of war (POWs) ride atop of an infantry fighting vehicle after a swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

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

Ukrainian prisoners of war (POWs) ride atop of an infantry fighting vehicle after a swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii TPX IMAGES OF THE DAY 

A Ukrainian prisoner of war (POW) is seen after a swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

Ukrainian prisoners of war (POWs) are seen atop and next to an infantry fighting vehicle after a swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

Ukrainian prisoners of war (POWs) ride atop of an infantry fighting vehicle after a swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

A Ukrainian prisoner of war (POW) is seen after a swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

Ukrainian prisoners of war (POWs) ride atop of an infantry fighting vehicle after a swap, amid Russia's attack on Ukraine, in Donetsk region, Ukraine May 25, 2023. REUTERS/Yevhenii Zavhorodnii 

Jack Brennan, American colonel in the U.S. Marine Corps during the Vietnam War, speaks to Vietnam POWs as they reunite in person at the Nixon Library in celebration of the 50th anniversary of their homecoming, in Yorba Linda, California, U.S., May 23, 2023. REUTERS/Mike Blake 

Jack Brennan, American colonel in the U.S. Marine Corps during the Vietnam War, greets Vietnam POWs as they reunite in person at the Nixon Library in celebration of the 50th anniversary of their homecoming in Yorba Linda, California, U.S., May 23, 2023. REUTERS/Mike Blake 

French President Emmanuel Macron leaves after delivering his speech as he visits the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron leaves after delivering his speech as he visits the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron leaves after delivering his speech as he visits the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron delivers his speech as he visits the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron delivers his speech as he visits the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron delivers his speech as he visits the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron delivers his speech as he visits the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron, left, followed by Serge and Beate Klarsfeld, visits the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron visits the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron talks with Claude Bloch, left, who was deported when he was a child, and Nazi hunter Serge Klarsfeld, center, as he visits at the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron, right, grimace as he listens to Serge Klarsfeld and with Claude Bloch, left, who was deported when he was a child, at the place of the Baroque aux Juifs (Jews' barrack), as he visits at the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron, top right, leaves with Claude Bloch, center right, who was deported when he was a child, as he visits at the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron shakes hands with officials as he arrives at the World War II Montluc prison to pay tribute to the French Resistance movement and one of its leaders, Jean Moulin, on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron lays a wreath at the World War II Montluc prison on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

French President Emmanuel Macron stands at attention as he lays a wreath at the World War II Montluc prison on the anniversary of the end of the war, outside Lyon, France, Monday, May 8, 2023. Laurent Cipriani/Pool via REUTERS 

Medics treat a wounded Ukrainian soldier in the operation room of a frontline medical stabilisation point amid Russia's attack on Ukraine, near Vuhledar, Donetsk region, Ukraine, February 19, 2023. Adrenaline helps keep the medical team going and enables them to cope with the almost constant flow of wounded soldiers, including some Russians who are later exchanged for Ukrainian prisoners. REUTERS/Marko Djurica SEARCH "DJURICA UKRAINE MEDICS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY 

Medics place a wounded Ukrainian soldier on a table in the operation room of a frontline medical stabilisation point amid Russia's attack on Ukraine, near Vuhledar, Donetsk region, Ukraine, February 19, 2023. Adrenaline helps keep the medical team going and enables them to cope with the almost constant flow of wounded soldiers, including some Russians who are later exchanged for Ukrainian prisoners. REUTERS/Marko Djurica SEARCH "DJURICA UKRAINE MEDICS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Blood and mud marks the floor next to a pair of boots and the helmet of a wounded Ukrainian soldier, who is being treated in the operating room of a frontline medical stabilisation point, amid Russia's attack on Ukraine, near Vuhledar, Donetsk region, Ukraine, February 19, 2023. Adrenaline helps keep the medical team going and enables them to cope with the almost constant flow of wounded soldiers, including some Russians who are later exchanged for Ukrainian prisoners. REUTERS/Marko Djurica SEARCH "DJURICA UKRAINE MEDICS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

General surgeon Yuri assists a wounded Ukrainian soldier in the operation room of a frontline medical stabilisation point, amid Russia's attack on Ukraine, near Vuhledar, Donetsk region, Ukraine, February 19, 2023. Adrenaline helps keep the medical team going and enables them to cope with the almost constant flow of wounded soldiers, including some Russians who are later exchanged for Ukrainian prisoners. REUTERS/Marko Djurica SEARCH "DJURICA UKRAINE MEDICS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. 

Medics treat a wounded Ukrainian soldier in the operation room of a frontline medical stabilisation point, amid Russia's attack on Ukraine, near Vuhledar, Donetsk region, Ukraine, February 19, 2023. Adrenaline helps keep the medical team going and enables them to cope with the almost constant flow of wounded soldiers, including some Russians who are later exchanged for Ukrainian prisoners. REUTERS/Marko Djurica SEARCH "DJURICA UKRAINE MEDICS" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES.