A sapper of the State Emergency Service pulls an anti-tank mine as he inspects an area for mines and unexploded shells, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service carries an anti-tank mine as he inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service carries an anti-tank mine as he inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

Sappers of the State Emergency Service inspect an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

Sappers of the State Emergency Service inspect an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

Sappers of the State Emergency Service inspect an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

Sappers of the State Emergency Service inspect an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service inspects an area for mines and unexploded shells, as Russia's attack on Ukraine continues, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service carries an anti-tank mine as he inspects an area for mines and unexploded shells, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

A sapper of the State Emergency Service carries an anti-tank mine as he inspects an area for mines and unexploded shells, amid Russia's attack on Ukraine, in Kharkiv region, Ukraine March 21, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's Prime Minister Denys Shmyhal attends a news conference, amid Russia's attack on Ukraine, in Kyiv, Ukraine March 3, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's Prime Minister Denys Shmyhal attends a news conference, amid Russia's attack on Ukraine, in Kyiv, Ukraine March 3, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's Prime Minister Denys Shmyhal attends a news conference, amid Russia's attack on Ukraine, in Kyiv, Ukraine March 3, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's Prime Minister Denys Shmyhal attends a news conference, amid Russia's attack on Ukraine, in Kyiv, Ukraine March 3, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's Prime Minister Denys Shmyhal attends a news conference, amid Russia's attack on Ukraine, in Kyiv, Ukraine March 3, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Polish Prime Minister Mateusz Morawiecki attend a joint news briefing on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Polish Prime Minister Mateusz Morawiecki attend a joint news briefing on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Polish Prime Minister Mateusz Morawiecki attend a joint news briefing on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Polish Prime Minister Mateusz Morawiecki attend a joint news briefing on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Polish Prime Minister Mateusz Morawiecki passes documents for Leopard tanks to Ukraine's President Volodymyr Zelenskiy during a joint news briefing, on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Polish Prime Minister Mateusz Morawiecki shake hands during a joint news briefing on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Polish Prime Minister Mateusz Morawiecki attends a joint news briefing with Ukraine's President Volodymyr Zelenskiy, on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy receives documents for Leopard tanks from Polish Prime Minister Mateusz Morawiecki during a joint news briefing, on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Polish Prime Minister Mateusz Morawiecki passes documents for Leopard tanks to Ukraine's President Volodymyr Zelenskiy during a joint news briefing, on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Polish Prime Minister Mateusz Morawiecki attends a joint news briefing with Ukraine's President Volodymyr Zelenskiy, on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy attends a joint news briefing with Polish Prime Minister Mateusz Morawiecki, on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy receives documents for Leopard tanks from Polish Prime Minister Mateusz Morawiecki during a joint news briefing, on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Polish Prime Minister Mateusz Morawiecki embrace during a joint news briefing on a day of the first anniversary of Russia's attack on Ukraine, in Kyiv, Ukraine February 24, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Spain's Prime Minister Pedro Sanchez arrive for a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 23, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Spain's Prime Minister Pedro Sanchez attend a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 23, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Spain's Prime Minister Pedro Sanchez attend a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 23, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Spain's Prime Minister Pedro Sanchez shake hands after a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 23, 2023. REUTERS/Viacheslav Ratynskyi 

Spain's Prime Minister Pedro Sanchez attends a joint news briefing with Ukraine's President Volodymyr Zelenskiy (not seen), amid Russia's attack on Ukraine, in Kyiv, Ukraine February 23, 2023. REUTERS/Viacheslav Ratynskyi 

Italian Prime Minister Giorgia Meloni visits the site of a mass grave in the town of Bucha, amid Russia's attack on Ukraine, outside of Kyiv, Ukraine February 21, 2023. REUTERS/Vladyslav Musiienko 

Italian Prime Minister Giorgia Meloni visits the site of a mass grave in the town of Bucha, amid Russia's attack on Ukraine, outside of Kyiv, Ukraine February 21, 2023. REUTERS/Vladyslav Musiienko 

Italian Prime Minister Giorgia Meloni visits a church at the site of a mass grave in the town of Bucha, amid Russia's attack on Ukraine, outside of Kyiv, Ukraine February 21, 2023. REUTERS/Vladyslav Musiienko 

Italian Prime Minister Giorgia Meloni visits a church at the site of a mass grave in the town of Bucha, amid Russia's attack on Ukraine, outside of Kyiv, Ukraine February 21, 2023. REUTERS/Vladyslav Musiienko TPX IMAGES OF THE DAY 

Italian Prime Minister Giorgia Meloni visits a church at the site of a mass grave in the town of Bucha, amid Russia's attack on Ukraine, outside of Kyiv, Ukraine February 21, 2023. REUTERS/Vladyslav Musiienko 

Italian Prime Minister Giorgia Meloni visits the site of a mass grave in the town of Bucha, amid Russia's attack on Ukraine, outside of Kyiv, Ukraine February 21, 2023. REUTERS/Vladyslav Musiienko 

Italian Prime Minister Giorgia Meloni places flowers at the site of a mass grave in the town of Bucha, amid Russia's attack on Ukraine, outside of Kyiv, Ukraine February 21, 2023. REUTERS/Vladyslav Musiienko 

Italian Prime Minister Giorgia Meloni places flowers at the site of a mass grave in the town of Bucha, amid Russia's attack on Ukraine, outside of Kyiv, Ukraine February 21, 2023. REUTERS/Vladyslav Musiienko 

Italian Prime Minister Giorgia Meloni visits the site of a mass grave in the town of Bucha, amid Russia's attack on Ukraine, outside of Kyiv, Ukraine February 21, 2023. REUTERS/Vladyslav Musiienko 

U.S. President Joe Biden and Ukraine's President Volodymyr Zelenskiy walk next to Saint Michael’s cathedral, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 20, 2023. REUTERS/Viacheslav Ratynskyi TPX IMAGES OF THE DAY 

Members of the Honour Guard stand next to the Saint Michael's cathedral, amid Russia's attack on Ukraine, in central Kyiv, Ukraine February 20, 2023. REUTERS/Viacheslav Ratynskyi 

Members of the Honour Guard stand next to the Saint Michael's cathedral, amid Russia's attack on Ukraine, in central Kyiv, Ukraine February 20, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Netherlands' Prime Minister Mark Rutte attend a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 17, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Netherlands' Prime Minister Mark Rutte attend a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 17, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Netherlands' Prime Minister Mark Rutte shake hands before a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 17, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Netherlands' Prime Minister Mark Rutte shake hands before a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 17, 2023. REUTERS/Viacheslav Ratynskyi 

Netherlands' Prime Minister Mark Rutte attends a joint news briefing with Ukraine's President Volodymyr Zelenskiy (not pictured), amid Russia's attack on Ukraine, in Kyiv, Ukraine February 17, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Netherlands' Prime Minister Mark Rutte shake hands before a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 17, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Netherlands' Prime Minister Mark Rutte attend a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 17, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Netherlands' Prime Minister Mark Rutte attend a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 17, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Netherlands' Prime Minister Mark Rutte attend a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 17, 2023. REUTERS/Viacheslav Ratynskyi 

Ukraine's President Volodymyr Zelenskiy and Netherlands' Prime Minister Mark Rutte arrive at a joint news briefing, amid Russia's attack on Ukraine, in Kyiv, Ukraine February 17, 2023. REUTERS/Viacheslav Ratynskyi 

A teacher conducts a lesson for school students as they take shelter inside a metro station during massive Russian missile attacks in Kyiv, Ukraine February 10, 2023. REUTERS/Viacheslav Ratynskyi 

School students attend a lesson as they take shelter inside a metro station during massive Russian missile attacks in Kyiv, Ukraine February 10, 2023. REUTERS/Viacheslav Ratynskyi