U.S. President Joe Biden speaks with Ashley Williams, special assistant to the President and deputy director of Oval Office operations, as he arrives to board Air Force One for return travel to Washington, at Dover Air Force Base in Dover, Delaware, U.S., January 23, 2023. REUTERS/Ken Cedeno 

Ukrainian servicemen attend a special service for Ukrainian Armed Forces at Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) inaugurating Orthodox Christmas celebrations, amid Russia's attack on Ukraine, in central Kyiv, Ukraine January 6, 2023. REUTERS/Gleb Garanich 

Metropolitan Epiphanius I, head of the Orthodox Church of Ukraine leads a special service for Ukrainian Armed Forces at St Michael’s Cathedral inaugurating Orthodox Christmas celebrations, amid Russia's attack on Ukraine, in Kyiv, Ukraine January 6, 2023. REUTERS/Gleb Garanich 

Ukrainian servicemen attend a special service for Ukrainian Armed Forces at Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) inaugurating Orthodox Christmas celebrations, amid Russia's attack on Ukraine, in central Kyiv, Ukraine January 6, 2023. REUTERS/Gleb Garanich 

Ukrainian servicemen attend a special service for Ukrainian Armed Forces at Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) inaugurating Orthodox Christmas celebrations, amid Russia's attack on Ukraine, in central Kyiv, Ukraine January 6, 2023. REUTERS/Gleb Garanich 

Ukrainian servicemen attend a special service for Ukrainian Armed Forces at Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) inaugurating Orthodox Christmas celebrations, amid Russia's attack on Ukraine, in central Kyiv, Ukraine January 6, 2023. REUTERS/Gleb Garanich 

Ukrainian servicemen attend a special service for Ukrainian Armed Forces at Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) inaugurating Orthodox Christmas celebrations, amid Russia's attack on Ukraine, in central Kyiv, Ukraine January 6, 2023. REUTERS/Gleb Garanich TPX IMAGES OF THE DAY 

Ukrainian servicemen attend a special service for Ukrainian Armed Forces at Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) inaugurating Orthodox Christmas celebrations, amid Russia's attack on Ukraine, in central Kyiv, Ukraine January 6, 2023. REUTERS/Gleb Garanich 

Ukrainian servicemen attend a special service for Ukrainian Armed Forces at Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) inaugurating Orthodox Christmas celebrations, amid Russia's attack on Ukraine, in central Kyiv, Ukraine January 6, 2023. REUTERS/Gleb Garanich 

Ukrainian servicemen attend a special service for Ukrainian Armed Forces at Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) inaugurating Orthodox Christmas celebrations, amid Russia's attack on Ukraine, in central Kyiv, Ukraine January 6, 2023. REUTERS/Gleb Garanich 

Ukrainian servicemen attend a special service for Ukrainian Armed Forces at Mikhailovsky Zlatoverkhy Cathedral (St. Michael's Golden-Domed Cathedral) inaugurating Orthodox Christmas celebrations, amid Russia's attack on Ukraine, in central Kyiv, Ukraine January 6, 2023. REUTERS/Gleb Garanich 

Tetiana Tovstokora, 57, demonstrates the tightness of the sack used at times to cover her head during her detention by Russian forces at the police station, in Balakliia, Kharkiv region, Ukraine, October 7, 2022. Tovstokora is pictured standing outside the cell in which she was held. To match Special Report UKRAINE-CRISIS/RUSSIA-BASE REUTERS/Zohra Bensemra 

Propaganda posters displayed on a wall inside an abandoned building that was used by Russian forces as their headquarters in Balakliia, Kharkiv region, Ukraine, October 7, 2022. To match Special Report UKRAINE-CRISIS/RUSSIA-BASE REUTERS/Zohra Bensemra 

Propaganda posters that read "Russian soldiers protecting the whole Russian world" and "We bring peace" displayed on a wall inside a building used by Russian forces as their headquarters in Balakliia, Kharkiv region, Ukraine, October 7, 2022. To match Special Report UKRAINE-CRISIS/RUSSIA-BASE REUTERS/Zohra Bensemra 

Salvadoran special forces soldiers make a demonstration of an operation against gangs during a parade commemorating Independence Day in San Salvador, El Salvador September 15, 2022. REUTERS/Jose Cabezas 

A Ukrainian national flag installed on the monument to Ukrainian poet Taras Shevchenko is seen, as Russia's attack on Ukraine continues, in the town of Balakliia, liberated by Ukrainian Armed Forces, in Kharkiv region, Ukraine September 13, 2022. To match Special Report UKRAINE-CRISIS/RUSSIA-BASE REUTERS/Gleb Garanich 

A residential house damaged by shelling, as Russia's attack on Ukraine continues, is seen in the village of Hrakove, liberated by Ukrainian Armed Forces, in Kharkiv region, Ukraine September 9, 2022. To match Special Report UKRAINE-CRISIS/RUSSIA-BASE REUTERS/Vyacheslav Madiyevskyy 

Members of the security forces monitor the access of special equipment to continue the rescue operation for miners trapped in a coal mine that collapsed in Sabinas, in Coahuila state, Mexico, August 10, 2022. REUTERS/Luis Cortes 

A member of the Ukrainian Special Forces, who rescued a small kitten named 'Snake' from Snake Island after it was recaptured by the Ukrainian Armed Forces, speaks during an interview with Reuters, in Kyiv, Ukraine, July 22, 2022. REUTERS/Alkis Konstantinidis 

A member of the Ukrainian Special Forces holds 'Snake', a small kitten rescued from Snake Island after it was recaptured by the Ukrainian Armed Forces, in Kyiv, Ukraine, July 22, 2022. REUTERS/Alkis Konstantinidis 

A member of the Ukrainian Special Forces holds 'Snake', a small kitten rescued from Snake Island after it was recaptured by the Ukrainian Armed Forces, in Kyiv, Ukraine, July 22, 2022. REUTERS/Alkis Konstantinidis 

General Richard D. Clarke, Commander of the U.S. Special Operations Command, salutes U.S. Vice President Kamala Harris as she departs after visiting the Central Command, at MacDill Air Force Base, in Tampa, Florida, U.S., July 14, 2022. REUTERS/Octavio Jones 

U.S. Vice President Kamala Harris takes part in a briefing with Generals of the Central Command (CENTCOM) and of the Special Operations Command (SOCOM) during her visit to the Central Command, at MacDill Air Force Base, in Tampa, Florida, U.S., July 14, 2022. REUTERS/Octavio Jones 

U.S. Vice President Kamala Harris takes part in a briefing with Generals of the Central Command (CENTCOM) and of the Special Operations Command (SOCOM) during her visit to the Central Command, at MacDill Air Force Base, in Tampa, Florida, U.S., July 14, 2022. REUTERS/Octavio Jones 

General Erik Kurilla, Commander of the U.S. Central Command, and General Richard D. Clarke, Commander of the U.S. Special Operations Command, prepare to welcome U.S. Vice President Kamala Harris as she arrives to visit the Central Command, at MacDill Air Force Base, in Tampa, Florida, U.S., July 14, 2022. REUTERS/Octavio Jones 

U.S. Vice President Kamala Harris is welcomed by General Erik Kurilla, Commander of the U.S. Central Command, and General Richard D. Clarke, Commander of the U.S. Special Operations Command, as she arrives to visit the Central Command, at MacDill Air Force Base, in Tampa, Florida, U.S., July 14, 2022. REUTERS/Octavio Jones 

U.S. Vice President Kamala Harris is welcomed by General Erik Kurilla, Commander of the U.S. Central Command, and General Richard D. Clarke, Commander of the U.S. Special Operations Command, as she arrives to visit the Central Command, at MacDill Air Force Base, in Tampa, Florida, U.S., July 14, 2022. REUTERS/Octavio Jones 

U.S. Vice President Kamala Harris is welcomed General Erik Kurilla, Commander of the U.S. Central Command, and General Richard D. Clarke, Commander of the U.S. Special Operations Command, as she arrives to visit the Central Command, at MacDill Air Force Base, in Tampa, Florida, U.S., July 14, 2022. REUTERS/Octavio Jones 

A controlled detonation of explosive devices found by members of the Special Demining Unit of the State Emergency Service of Ukraine in Kyiv region is conducted near Borodianka, Ukraine May 17, 2022. REUTERS/Abdelhadi Ramahi TPX IMAGES OF THE DAY 

Members of the of Special Demining Unit of the State Emergency Service of Ukraine in Kyiv region transport a piece of artillery launched by Russian forces during the invasion of Ukraine near Borodianka, Ukraine, May 17, 2022. REUTERS/Carlos Barria 

A controlled detonation of explosive devices found by members of the Special Demining Unit of the State Emergency Service of Ukraine in Kyiv region after the Russian invasion of Ukraine is seen near Borodianka, Ukraine, May 17, 2022. REUTERS/Carlos Barria 

A local resident talks to members of the Special Demining Unit of the State Emergency Service of Ukraine in Kyiv region as they look for explosive devices after Russian forces invasion of Ukraine, near Borodianka, Ukraine May 16, 2022. Picture taken May 16, 2022. REUTERS/Carlos Barria 

Members of the special demining unit of the State Emergency Service of Ukraine in Kyiv region remove pieces of a rocket launched by Russian forces during the invasion of Ukraine at a wooded area near in Borodianka, Ukraine May 16, 2022. Picture taken May 16, 2022. REUTERS/Carlos Barria 

Members of the special demining unit of the State Emergency Service of Ukraine in Kyiv region remove pieces of a rocket launched by Russian forces during the invasion of Ukraine at a wooded area near in Borodianka, Ukraine May 16, 2022. Picture taken May 16, 2022. REUTERS/Carlos Barria 

Members of the special demining unit of the State Emergency Service of Ukraine in Kyiv region inspect a house destroyed by Russian forces during the invasion of Ukraine as they look for explosive devices near Borodianka, Ukraine May 16, 2022. Picture taken May 16, 2022. REUTERS/Carlos Barria 

Members of the special demining unit of the State Emergency Service of Ukraine in Kyiv region follow a local resident into the woods after receiving a call about a potential explosive device, as the Russian invasion of Ukraine continues, in Borodianka, Ukraine May 16, 2022. Picture taken May 16, 2022. REUTERS/Carlos Barria 

A local resident talks with a member of the Special Demining Unit of the State Emergency Service of Ukraine in Kyiv region as they look for explosive devices after Russia's invasion of Ukraine, near Borodianka, Ukraine May 16, 2022. Picture taken May 16, 2022. REUTERS/Carlos Barria 

Members of the special demining unit of the State Emergency Service of Ukraine in Kyiv region follow a local resident into the woods after receiving a call about a potential explosive device, as the Russian invasion of Ukraine continues, in Borodianka, Ukraine May 16, 2022. Picture taken May 16, 2022. REUTERS/Carlos Barria 

A member of the Special Demining Unit of the State Emergency Service of Ukraine in Kyiv region stands by a piece of rocket launched by Russian forces during the invasion of Ukraine at a woody area near Borodianka, Ukraine May 16, 2022. Picture taken May 16, 2022. REUTERS/Carlos Barria 

A member of the special forces takes part in 'Exercise Trojan Footprint' training of medical and casualty night evacuations, during a media tour of the special operations, in Spilve, Latvia, May 10, 2022. REUTERS/Remo Casilli 

A member of the special forces takes part in 'Exercise Trojan Footprint' training of medical and casualty night evacuations, during a media tour of the special operations, in Spilve, Latvia, May 10, 2022. REUTERS/Remo Casilli 

Members of the special forces take part in 'Exercise Trojan Footprint' training of medical and casualty night evacuations, during a media tour of the special operations, in Spilve, Latvia, May 10, 2022. REUTERS/Remo Casilli 

Members of the special forces take part in 'Exercise Trojan Footprint' training of medical and casualty night evacuations, during a media tour of the special operations, in Spilve, Latvia, May 10, 2022. REUTERS/Remo Casilli 

A member of the special forces takes part in 'Exercise Trojan Footprint' training of medical and casualty night evacuations, during a media tour of the special operations, in Spilve, Latvia, May 10, 2022. REUTERS/Remo Casilli 

A member of the special forces takes part in 'Exercise Trojan Footprint' training of medical and casualty night evacuations, during a media tour of the special operations, in Spilve, Latvia, May 10, 2022. REUTERS/Remo Casilli 

People give medical care to a mannequin in a van, as part of Latvian and U.S. medical NATO forces 'Exercise Trojan Footprint' training of medical and casualty night evacuations, during a media tour of the special operations, in Spilve, Latvia, May 10, 2022. REUTERS/Remo Casilli 

A woman gives medical care to a mannequin, as part of Latvian and U.S. medical NATO forces 'Exercise Trojan Footprint' training of medical and casualty night evacuations, during a media tour of the special operations, in Spilve, Latvia, May 10, 2022. REUTERS/Remo Casilli 

Latvian and U.S. medical NATO forces move a mannequin, as part of 'Exercise Trojan Footprint' training of medical and casualty night evacuations, during a media tour of the special operations, in Spilve, Latvia, May 10, 2022. REUTERS/Remo Casilli 

Romanian soldiers on board the ship Vice Admiral Constantin Balescu 274 participate in 'Exercise Trojan Footprint' exercises carried out by Romanian, British and U.S. maritime NATO forces, during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

Soldiers walk on board the ship Vice Admiral Constantin Balescu 274 as Romanian, British and U.S. maritime NATO forces carry out 'Exercise Trojan Footprint' exercises during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

Soldiers are seen on board the ship Vice Admiral Constantin Balescu 274 while Romanian helicopter Puma 330 flies overhead as Romanian, British and U.S. maritime NATO forces carry out 'Exercise Trojan Footprint' exercises during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

Soldiers walk on board the ship Vice Admiral Constantin Balescu 274 as Romanian, British and U.S. maritime NATO forces carry out 'Exercise Trojan Footprint' exercises during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

A soldier patrols the ship Vice Admiral Constantin Balescu 274 amid fog as Romanian, British and U.S. maritime NATO forces carry out 'Exercise Trojan Footprint' exercises during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

Soldiers walk on board the ship Vice Admiral Constantin Balescu 274 as Romanian, British and U.S. maritime NATO forces carry out 'Exercise Trojan Footprint' exercises during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

Soldiers participate in 'Exercise Trojan Footprint' exercises carried out by Romanian, British and U.S. maritime NATO forces, during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

A Romanian soldier uses an M240 machine gun on board a vessel as Romanian, British and U.S. maritime NATO forces carry out 'Exercise Trojan Footprint' exercises during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

A soldier participates in 'Exercise Trojan Footprint' exercises carried out by Romanian, British and U.S. maritime NATO forces, during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

Soldiers are seen on vessels as Romanian, British and U.S. maritime NATO forces carry out 'Exercise Trojan Footprint' exercises during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

A soldier hangs on a rope attached to Romanian helicopter Puma 330 as Romanian, British and U.S. maritime NATO forces carry out 'Exercise Trojan Footprint' exercises during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli 

Soldiers board the ship Vice Admiral Constantin Balescu 274 as Romanian, British and U.S. maritime NATO forces carry out 'Exercise Trojan Footprint' exercises during a media tour of the special operations at sea off Constanta, Romania, May 9, 2022. REUTERS/Remo Casilli