A view shows the empty Alexandre III bridge near the Hotel National des Invalides as a lockdown is imposed to slow the spreading of the coronavirus disease (COVID-19) in Paris, France March 18, 2020. REUTERS/Gonzalo Fuentes

A view shows the empty Alexandre III bridge near the Hotel National des Invalides as a lockdown is imposed to slow the spreading of the coronavirus disease (COVID-19) in Paris, France March 18, 2020. REUTERS/Gonzalo Fuentes

French President Emmanuel Macron attends a ceremony for late French journalist and intellectual Jean Daniel at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool TPX IMAGES OF THE DAY

French President Emmanuel Macron attends a ceremony for late French journalist and intellectual Jean Daniel at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

French President Emmanuel Macron stands in front of the flag-draped coffin of late French journalist and intellectual Jean Daniel during a ceremony at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

French President Emmanuel Macron attends a ceremony for late French journalist and intellectual Jean Daniel at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

The flag-draped coffin of late French journalist and intellectual Jean Daniel is carried during a ceremony at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

French President Emmanuel Macron and relatives follow the flag-draped coffin of late French journalist and intellectual Jean Daniel during a ceremony at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

French President Emmanuel Macron stands in front of the flag-draped coffin of late French journalist and intellectual Jean Daniel during a ceremony at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

French President Emmanuel Macron attends a ceremony for late French journalist and intellectual Jean Daniel at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

French President Emmanuel Macron attends a ceremony for late French journalist and intellectual Jean Daniel at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

French President Emmanuel Macron attends a ceremony for late French journalist and intellectual Jean Daniel at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

French Culture Minister Franck Riester arrives to attend a ceremony for late French journalist and intellectual Jean Daniel at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

French philosopher, writer and director Bernard-Henri Levy arrives to attend a ceremony for late French journalist and intellectual Jean Daniel at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

French philosopher, writer and director Bernard-Henri Levy arrives to attend a ceremony for late French journalist and intellectual Jean Daniel at the Hotel des Invalides in Paris, France, February 28, 2020. REUTERS/Christian Hartmann/Pool

People queue to pay tribute to late French President Jacques Chirac during a popular national tribute at the Hotel des Invalides in Paris, France, September 29, 2019. REUTERS/Benoit Tessier/File Photo SEARCH "GLOBAL POY" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2019 PACKAGES. TPX IMAGES OF THE DAY.

French President Emmanuel Macron stands in front of the coffins of the thirteen French soldiers who died in a helicopter collision in Mali, at the Hotel National des Invalides in Paris, France December 2, 2019. Eliot Blondet/Pool via REUTERS

Soldiers stand next to the coffins of the thirteen French soldiers killed in Mali, during the national ceremony at the Hotel National des Invalides in Paris, France December 2, 2019. Eliot Blondet/Pool via REUTERS

Soldiers stand next to coffins of the thirteen French soldiers killed in Mali during the national ceremony at the Hotel National des Invalides in Paris, France December 2, 2019. Eliot Blondet/Pool via REUTERS

Former French Prime Ministers Francois Fillon and Jean-Pierre Raffarin arrive to attend a ceremony for the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron and his wife Brigitte Macron leave after the national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

A soldier carries the medals and the kepi of one of the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

Former French Prime Minister Francois Fillon arrives to attend a ceremony for the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron pays his respect in front of the flag-draped coffins of the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron, Prime Minister Edouard Philippe and Chief of the Defense Staff of the French Army General Francois Lecointre attend a national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron attends a national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French soldiers attend a national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French soldiers attend a national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French soldiers attend a national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

Soldiers carry away the coffin of some of the 13 French soldiers killed in Mali during a national ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. Thibault Camus/Pool via REUTERS

French President Emmanuel Macron and his wife Brigitte Macron leave after the national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. Thibault Camus/Pool via REUTERS

French President Emmanuel Macron and his wife Brigitte Macron leave after the national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

Soldiers carry a coffin during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

Soldiers carry a coffin during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

French President Emmanuel Macron and his wife Brigitte Macron leave after the national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron and his wife Brigitte Macron leave after the national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

Soldiers carry a coffin during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

Soldiers carry a coffin during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

French President Emmanuel Macron and his wife Brigitte Macron leave after the national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron walks past the flag-draped coffins of the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron walks past the flag-draped coffins of the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron stands at attention by the coffins during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

French President Emmanuel Macron leaves after standing at attention by the coffins during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

French President Emmanuel Macron walks past the flag-draped coffins of the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

Soldiers carry the coffins during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

French President Emmanuel Macron walks past the flag-draped coffins of the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron bows to coffins during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

French President Emmanuel Macron touches the coffin after he posthumously awarded a soldier with the Legion of Honor during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

French President Emmanuel Macron walks past the flag-draped coffins of the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron pays his respect in front of the flag-draped coffins of the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron pays his respect in front of the flag-draped coffins of the thirteen French soldiers killed in Mali, during a ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron touches the coffin after he posthumously awarded a soldier with the Legion of Honor during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

French President Emmanuel Macron bows before a coffin after he posthumously awarded a soldier with the Legion of Honor during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

The flag-draped coffins of the thirteen French soldiers killed in Mali, are seen during a national ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron delivers a speech during a national ceremony for the thirteen French soldiers killed in Mali, at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

The flag-draped coffins of the thirteen French soldiers killed in Mali, are seen during a national ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

French President Emmanuel Macron delivers a speech during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS

The flag-draped coffins of the thirteen French soldiers killed in Mali, are seen during a national ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

The flag-draped coffins of the thirteen French soldiers killed in Mali, are seen during a national ceremony at the Hotel National des Invalides in Paris, France, December 2, 2019. French soldiers Julien Carrette, Benjamin Gireud, Romain Salles de Saint-Paul, Clement Frison-Roche, Nicolas Megard, Romain Chomel de Jarnieu, Pierre Bockel, Alex Morisse, Jeremy Leusie, Alexandre Protin, Antoine Serre, Valentin Duval, Andrei Jouk died in Mali when their helicopters collided in the dark last week as they hunted for Islamist militants. REUTERS/Charles Platiau

The coffins are displayed during a ceremony for the 13 French soldiers killed in Mali, at the Invalides monument in Paris, France December 2, 2019. Thibault Camus/Pool via REUTERS