Mahdi Bechir, one of the Front for Change and Concord in Chad (FACT) leaders, who was captured during fighting in the north, speaks to journalists as he and others are displayed for the media at the army headquarters in N'Djamena, Chad May 9, 2021 REUTERS/Oredje Narcisse

Rebels from Front for Change and Concord in Chad (FACT), captured during the fighting in the north of the country, are pictured at the army headquarters in N'Djamena, Chad May 9, 2021. REUTERS/Oredje Narcisse

Rebels from Front for Change and Concord in Chad (FACT), captured during the fighting in the north of the country, are pictured at the army headquarters in N'Djamena, Chad May 9, 2021. REUTERS/Oredje Narcisse

Rebels from Front for Change and Concord in Chad (FACT), captured during the fighting in the north of the country, are pictured at the army headquarters in N'Djamena, Chad May 9, 2021. REUTERS/Oredje Narcisse

Rebels from Front for Change and Concord in Chad (FACT), captured during the fighting in the north of the country, are pictured at the army headquarters in N'Djamena, Chad May 9, 2021. REUTERS/Oredje Narcisse

Chadian army soldiers stand on a vehicle beside rebels from Front for Change and Concord in Chad (FACT), who were captured along with their equipment during fighting in the north of the country, at the army headquarters in N'Djamena, Chad May 9, 2021 REUTERS/Oredje Narcisse

People drive past a Chad army tank near presidential palace, as fighters from the rebel Front for Change and Concord in Chad (FACT) appeared to be moving toward the capital according to the United States, in N'djamena, Chad April 19, 2021. REUTERS/ Stringer

People drive past a Chad army tank near presidential palace, as fighters from the rebel Front for Change and Concord in Chad (FACT) appeared to be moving toward the capital according to the United States, in N'djamena, Chad April 19, 2021. REUTERS/ Stringer

U.S. First lady Jill Biden gestures during her speech as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden speaks as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden gestures during her speech as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

A Christa McAuliffe coin is displayed before it is given to U.S. First lady Jill Biden during her visit to Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden holds a Christa McAuliffe coin she received as she speaks during a visit at Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden speaks with students virtually as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden speaks to a student as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden looks on as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden speaks to a student as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden speaks to a student as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden speaks with students in Becky Taylor's classroom as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden speaks with students in Becky Taylor's classroom as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden speaks with students in Becky Taylor's classroom as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. First lady Jill Biden speaks with a student in Becky Taylor's classroom as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

U.S. first lady Jill Biden speaks with a student as she visits the Christa McAuliffe School in Concord, New Hampshire, U.S., March 17, 2021. Susan Walsh/Pool via REUTERS

Signs stating the store's permanent closure are posted on the front door at a Fry's Electronics store, after the chain announced that they would cease operations and close all branches due to changing retail conditions and challenges posed by the coronavirus pandemic, in Concord, California, U.S. February 24, 2021. REUTERS/Brittany Hosea-Small

A customer walks away from closed front doors at a Fry's Electronics store, after the chain announced that they would cease operations and close all branches due to changing retail conditions and challenges posed by the coronavirus pandemic, in Concord, California, U.S. February 24, 2021. REUTERS/Brittany Hosea-Small

A customer walks away from closed front doors at a Fry's Electronics store, after the chain announced that they would cease operations and close all branches due to changing retail conditions and challenges posed by the coronavirus pandemic, in Concord, California, U.S. February 24, 2021. REUTERS/Brittany Hosea-Small

An employee is let in through a staff entrance at a Fry's Electronics store, after the chain announced that they would cease operations and close all branches due to changing retail conditions and challenges posed by the coronavirus pandemic, in Concord, California, U.S. February 24, 2021. REUTERS/Brittany Hosea-Small

A pedestrian, wearing a protective face mask, walks at Place de la Concorde in Paris amid the coronavirus disease (COVID-19) outbreak in France, February 11, 2021. REUTERS/Sarah Meyssonnier

A man rides his bicycle at snow cover Place de la Concorde as winter weather with snow and cold temperatures hits a large northern part of the country, in Paris, France, February 10, 2021. REUTERS/Gonzalo Fuentes

A holy heart sacred cross sticks on a bicycle at Place de la Concorde during the commemoration of the execution of King Louis XVI 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Royalists gathered at Place de la Concorde to commemorate the exact moment when King Louis XVI was beheaded 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Flowers lay on the ground where Royalists gathered at Place de la Concorde, to commemorate the exact moment when King Louis XVI was beheaded 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Royalists gathered at Place de la Concorde to commemorate the exact moment when King Louis XVI was beheaded 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Flowers lay on the ground where Royalists gathered at Place de la Concorde, to commemorate the exact moment when King Louis XVI was beheaded 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Royalists gathered at Place de la Concorde to commemorate the exact moment when King Louis XVI was beheaded 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Royalists gathered at Place de la Concorde to commemorate the exact moment when King Louis XVI was beheaded 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Royalists gathered at Place de la Concorde to commemorate the exact moment when King Louis XVI was beheaded 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Royalists gathered at Place de la Concorde to commemorate the exact moment when King Louis XVI was beheaded 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Royalists gathered at Place de la Concorde to commemorate the exact moment when King Louis XVI was beheaded 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Royalists gathered at Place de la Concorde to commemorate the exact moment when King Louis XVI was beheaded 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Prince Charles-Emmanuel de Bourbon-Parme, descendent of Louis XIV, delivers a speech at Place de la Concorde during the commemoration of the execution of King Louis XVI 228 years ago in Paris, France, January 21, 2021. REUTERS/Benoit Tessier

Women wearing protective face masks walk at the Place de la Concorde as Christmas trees decorate along the Champs Elysees avenue leading up to the Eiffel Tower in Paris, France December 4, 2020. REUTERS/Gonzalo Fuentes

Christmas trees are seen at the Place de la Concorde as Christmas lights decorate trees along the Champs Elysees avenue in Paris, France December 4, 2020. REUTERS/Gonzalo Fuentes

Christmas trees are seen at the Place de la Concorde as Christmas lights decorate trees along the Champs Elysees avenue leading up to the Arc de Triomphe in Paris, France December 4, 2020. REUTERS/Gonzalo Fuentes

Christmas trees are seen at the Place de la Concorde as Christmas lights decorate trees along the Champs Elysees avenue leading up to the Arc de Triomphe in Paris, France December 4, 2020. REUTERS/Gonzalo Fuentes

Some traffic is seen from place de la Concorde in Paris on the first day of the second national lockdown as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19) in France, October 30, 2020. REUTERS/Charles Platiau

A deserted place de la Concorde in Paris is seen on the first day of the second national lockdown as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19) in France, October 30, 2020. REUTERS/Charles Platiau

French policemen control drivers place de la Concorde in Paris on the first day of the second national lockdown as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19) in France, October 30, 2020. REUTERS/Charles Platiau

French policemen control drivers place de la Concorde in Paris on the first day of the second national lockdown as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19) in France, October 30, 2020. REUTERS/Charles Platiau

French policemen control drivers place de la Concorde in Paris on the first day of the second national lockdown as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19) in France, October 30, 2020. REUTERS/Charles Platiau

French policemen control drivers place de la Concorde in Paris on the first day of the second national lockdown as part of the COVID-19 measures to fight a second wave of the coronavirus disease (COVID-19) in France, October 30, 2020. REUTERS/Charles Platiau

U.S. Vice President Mike Pence reacts to supporters outside the New Hampshire State House as he walks near his Chief of Staff Marc Short (L) after Pence filed candidacy papers for President Donald Trump to appear on the 2020 New Hampshire primary election ballot in Concord, New Hampshire, U.S., November 7, 2019. Picture taken November 7, 2019. REUTERS/Mike Segar

A billboard funded by the Democratic Party of Wisconsin, quoting U.S. President Donald Trump?s statements about the coronavirus (COVID-19) outbreak and tallying Wisconsin?s over 50,000 COVID-19 cases, is seen in the background behind a Trump 2020 campaign flag on a farm in Concord, Wisconsin, U.S., October 18, 2020. REUTERS/Bing Guan

Political campaign signs supporting U.S. President Donald Trump, Vice President Mike Pence, and Wisconsin State Assembly member Barbara Dittrich are seen next to corn fields and a farmhouse in Concord, Wisconsin, U.S., October 18, 2020. REUTERS/Bing Guan

Doctor Salvador Balboa Palomino and nurse Veronica Real Martinez, representing Spanish health workers on the front line against the coronavirus disease (COVID-19), stand after receiving the 2020 Princess of Asturias Award for Concord during a ceremony at Reconquista hotel in Oviedo, Spain, October 16, 2020. Andres Ballesteros/Pool via REUTERS

Doctor Salvador Balboa Palomino and nurse Veronica Real Martinez, representing Spanish health workers on the front line against COVID-19, stand after receiving the 2020 Princess of Asturias Award for Concord during a ceremony at Reconquista hotel in Oviedo, Spain, October 16, 2020. Andres Ballesteros/Pool via REUTERS

Doctor Salvador Balboa Palomino and nurse Veronica Real Martinez, representing Spanish health workers on the front line against coronavirus disease (COVID-19), react after receiving the 2020 Princess of Asturias Award for Concord during a ceremony at Reconquista hotel in Oviedo, Spain, October 16, 2020. Andres Ballesteros/Pool via REUTERS

Practice students of the army health service take part in the annual Bastille Day military ceremony on the Place de la Concorde in Paris, July 14, 2020. Ludovic Marin/Pool via REUTERS

Students of the Naval School take part in the annual Bastille Day military ceremony on the Place de la Concorde in Paris, on July 14, 2020. Ludovic Marin/Pool via REUTERS

National asset officers take part in the annual Bastille Day military ceremony on the Place de la Concorde in Paris, July 14, 2020. Ludovic Marin/Pool via REUTERS