Members of Burundi's National Defence Force (FDN), part of the troops of the East African Community Regional Force (EACRF), carry their luggage as they arrive on their deployment as part of a regional military operation targeting rebels, at the airport in Goma, North Kivu province of the Democratic Republic of Congo March 5, 2023. REUTERS/Arlette Bashizi 

Members of Burundi's National Defence Force (FDN), part of the troops of the East African Community Regional Force (EACRF), gather their luggage as they arrive on their deployment as part of a regional military operation targeting rebels, at the airport in Goma, North Kivu province of the Democratic Republic of Congo March 5, 2023. REUTERS/Arlette Bashizi 

Members of Burundi's National Defence Force (FDN), part of the troops of the East African Community Regional Force (EACRF), sit in a bus as they arrive on their deployment as part of a regional military operation targeting rebels, at the airport in Goma, North Kivu province of the Democratic Republic of Congo March 5, 2023. REUTERS/Arlette Bashizi 

Members of Burundi's National Defence Force (FDN), part of the troops of the East African Community Regional Force (EACRF), gather their luggage as they arrive on their deployment as part of a regional military operation targeting rebels, at the airport in Goma, North Kivu province of the Democratic Republic of Congo March 5, 2023. REUTERS/Arlette Bashizi 

Members of Burundi's National Defence Force (FDN), part of the troops of the East African Community Regional Force (EACRF), carry their luggage as they arrive on their deployment as part of a regional military operation targeting rebels, at the airport in Goma, North Kivu province of the Democratic Republic of Congo March 5, 2023. REUTERS/Arlette Bashizi 

Members of Burundi's National Defence Force (FDN), part of the troops of the East African Community Regional Force (EACRF), arrive to their deployment as part of a regional military operation targeting rebels, at the airport in Goma, North Kivu province of the Democratic Republic of Congo March 5, 2023. REUTERS/Arlette Bashizi 

Members of Burundi's National Defence Force (FDN), part of the troops of the East African Community Regional Force (EACRF), carry their luggage as they arrive on their deployment as part of a regional military operation targeting rebels, at the airport in Goma, North Kivu province of the Democratic Republic of Congo March 5, 2023. REUTERS/Arlette Bashizi 

President Joe Biden exits Air Force One as he arrives at a military airport in Warsaw, Poland, Monday, Feb. 20, 2023. Evan Vucci/Pool via REUTERS 

President Joe Biden arrives at a military airport in Warsaw, Poland, Monday, Feb. 20, 2023. Evan Vucci/Pool via REUTERS 

President Joe Biden arrives at a military airport in Warsaw, Poland, Monday, Feb. 20, 2023. Evan Vucci/Pool via REUTERS 

U.S. President Joe Biden arrives at a military airport, in Warsaw, Poland February 20, 2023. Evan Vucci/Pool via REUTERS REUTERS REFILE-CORRECTING DATE 

U.S. President Joe Biden arrives at a military airport, in Warsaw, Poland February 20, 2023. Evan Vucci/Pool via REUTERS REFILE-CORRECTING DATE 

U.S. President Joe Biden arrives at a military airport, in Warsaw, Poland February 20, 2023. Evan Vucci/Pool via REUTERS REFILE-CORRECTING DATE 

U.S. President Joe Biden arrives at a military airport, in Warsaw, Poland February 20, 2023. Evan Vucci/Pool via REUTERS REFILE-CORRECTING DATE 

Ukrainian President Volodymyr Zelenskiy and French President Emmanuel Macron (not seen) leave for a summit in Brussels, at the Military Airport Villacoublay in Velizy-Villacoublay, France February 9, 2023. Mohammed Badra/Pool via REUTERS 

French President Emmanuel Macron and Ukrainian President Volodymyr Zelenskiy leave for a summit in Brussels, at the Military Airport Villacoublay in Velizy-Villacoublay, France February 9, 2023. Mohammed Badra/Pool via REUTERS 

French President Emmanuel Macron and Ukrainian President Volodymyr Zelenskiy leave for a summit in Brussels, at the Military Airport Villacoublay in Velizy-Villacoublay, France February 9, 2023. Mohammed Badra/Pool via REUTERS 

French President Emmanuel Macron and Ukrainian President Volodymyr Zelenskiy leave for a summit in Brussels, at the Military Airport Villacoublay in Velizy-Villacoublay, France February 9, 2023. Mohammed Badra/Pool via REUTERS 

French President Emmanuel Macron and Ukrainian President Volodymyr Zelenskiy leave for a summit in Brussels, at the Military Airport Villacoublay in Velizy-Villacoublay, France February 9, 2023. Mohammed Badra/Pool via REUTERS 

French President Emmanuel Macron and Ukrainian President Volodymyr Zelenskiy leave for a summit in Brussels, at the Military Airport Villacoublay in Velizy-Villacoublay, France February 9, 2023. Mohammed Badra/Pool via REUTERS 

French President Emmanuel Macron and Ukrainian President Volodymyr Zelenskiy leave for a summit in Brussels, at the Military Airport Villacoublay in Velizy-Villacoublay, France February 9, 2023. Mohammed Badra/Pool via REUTERS 

French President Emmanuel Macron and Ukrainian President Volodymyr Zelenskiy leave for a summit in Brussels, at the Military Airport Villacoublay in Velizy-Villacoublay, France February 9, 2023. Mohammed Badra/Pool via REUTERS 

French President Emmanuel Macron and Ukrainian President Volodymyr Zelenskiy leave for a summit in Brussels, at the Military Airport Villacoublay in Velizy-Villacoublay, France February 9, 2023. Mohammed Badra/Pool via REUTERS 

Serviceman patrols in front of the Patriot air defence system during Polish military training on the missile systems at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Patriot air defence system is seen during Polish military training on the missile systems at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Concertina, a type of barbed wire lies across the terrain, with a general view of Warsaw skyscrapers, during Polish military training on the Patriot air defence missile systems (not pictured) at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Patriot air defence system with a view of Warsaw skyscrapers in the background is seen during Polish military training on the missile systems at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Patriot air defence system with a view of Warsaw skyscrapers in the background is seen during Polish military training on the missile systems at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Polish servicemen train as they stand on the Patriot air missile defence system at the airport in Warsaw, February 7, 2023. REUTERS/Kacper Pempel 

Poland's Defence Minister Mariusz Blaszczak speaks in front of the Patriot air defence system during Polish military training on the missile systems at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Servicemen patrol in front of the Patriot air defence system during Polish military training on the missile systems at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Serviceman patrols in front of the Patriot air defence system during Polish military training on the missile systems at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Patriot air defence system is seen during Polish military training on the missile systems at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Serviceman patrols during Polish military training on Patriot air defence missile systems at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Serviceman patrols in front of the Patriot air defence system during Polish military training on the missile systems at the airport in Warsaw, Poland February 7, 2023. REUTERS/Kacper Pempel 

Military doctors from Azerbaijan arrive to Adana Airport to help people affected by the deadly earthquake, in Adana, Turkey, February 7, 2023. REUTERS/Emilie Madi 

Military doctors from Azerbaijan arrive to Adana Airport to help people affected by the deadly earthquake, in Adana, Turkey, February 7, 2023. REUTERS/Emilie Madi 

Workers and security forces process aid from Red Crescent that will be shipped on a plane of emergency relief to Syria to support victims of the deadly earthquake, at a military airbase near Baghdad International Airport in Baghdad, Iraq, February 6, 2023. REUTERS/Ahmed Saad 

Iraqi security forces process aid from Red Crescent that will be shipped on a plane of emergency relief to Syria to support victims of the deadly earthquake, at a military airbase near Baghdad International Airport in Baghdad, Iraq, February 6, 2023. REUTERS/Ahmed Saad 

Workers and security forces process aid from Red Crescent that will be shipped on a plane of emergency relief to Syria to support victims of the deadly earthquake, at a military airbase near Baghdad International Airport in Baghdad, Iraq, February 6, 2023. REUTERS/Ahmed Saad 

Iraqi security forces process aid from Red Crescent that will be shipped on a plane of emergency relief to Syria to support victims of the deadly earthquake, at a military airbase near Baghdad International Airport in Baghdad, Iraq, February 6, 2023. REUTERS/Ahmed Saad 

Workers and security forces process aid from Red Crescent that will be shipped on a plane of emergency relief to Syria to support victims of the deadly earthquake, at a military airbase near Baghdad International Airport in Baghdad, Iraq, February 6, 2023. REUTERS/Ahmed Saad 

Workers and security forces process aid from Red Crescent that will be shipped on a plane of emergency relief to Syria to support victims of the deadly earthquake, at a military airbase near Baghdad International Airport, in Baghdad, Iraq, February 6, 2023. REUTERS/Ahmed Saad 

Iraqi security forces process aid from Red Crescent that will be shipped on a plane of emergency relief to Syria to support victims of the deadly earthquake, at a military airbase near Baghdad International Airport in Baghdad, Iraq, February 6, 2023. REUTERS/Ahmed Saad 

Workers process aid that will be shipped on a plane of emergency relief to Syria to support victims of the deadly earthquake, at a military airbase near Baghdad International Airport in Baghdad, Iraq, February 6, 2023. REUTERS/Ahmed Saad 

Iraqi soldiers and Iraqi Red Crescent society workers unload trucks with aid that will be shipped on a plane of emergency relief to Syria to support victims of the deadly earthquake, at a military airbase near Baghdad International Airport in Baghdad, Iraq, February 6, 2023. REUTERS/Ahmed Saad 

Iraqi soldiers and Iraqi Red Crescent society workers unload trucks with aid that will be shipped on a plane of emergency relief to Syria to support victims of the deadly earthquake, at a military airbase near Baghdad International Airport in Baghdad, Iraq, February 6, 2023. REUTERS/Ahmed Saad 

Members of the Disaster Response Special Unit who will fly to Turkey to help in the aftermath of an earthquake, board a Hellenic Air Force C-130, before departing from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

Members of the Disaster Response Special Unit with their dogs wait to board the Hellenic Air Force C-130, in order to fly to Turkey to help in the aftermath of an earthquake, before departing from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

Members of the Disaster Response Special Unit with their dogs who will fly to Turkey to help in the aftermath of an earthquake, board a Hellenic Air Force C-130, before departing from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

A Hellenic Air Force C-130, carrying members of a Disaster Response Special Unit who will fly to Turkey to help in the aftermath of an earthquake, departs from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

A Hellenic Air Force C-130, carrying members of a Disaster Response Special Unit who will fly to Turkey to help in the aftermath of an earthquake, departs from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

A Hellenic Air Force C-130, carrying members of a Disaster Response Special Unit who will fly to Turkey to help in the aftermath of an earthquake, prepares to depart from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

Members of the Disaster Response Special Unit who will fly to Turkey to help in the aftermath of an earthquake, board a Hellenic Air Force C-130, before departing from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

Members of the Disaster Response Special Unit who will fly to Turkey to help in the aftermath of an earthquake, board a Hellenic Air Force C-130, before departing from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

Members of the Disaster Response Special Unit who will fly to Turkey to help in the aftermath of an earthquake, pose for a picture before departing from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

A Hellenic Air Force C-130, carrying members of a Disaster Response Special Unit who will fly to Turkey to help in the aftermath of an earthquake, departs from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

A Hellenic Air Force C-130, carrying members of a Disaster Response Special Unit who will fly to Turkey to help in the aftermath of an earthquake, departs from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

Members of the Disaster Response Special Unit, who will fly to Turkey to help in the aftermath of an earthquake, board a Hellenic Air Force C-130, before departing from the military airport of Elefsina, Greece, February 6, 2023. REUTERS/Louiza Vradi 

U.S. Vice President Kamala Harris and her husband Doug Emhoff arrive at Ninoy Aquino International Airport, in Metro Manila, Philippines, November 20, 2022. REUTERS/Eloisa Lopez