A campaign poster of French far-right Rassemblement National (RN) party candidate Thierry Mariani is seen on an electoral panel ahead of the upcoming French regional elections in Saintes-Maries-de-la-Mer, France, June 7, 2021. Picture taken June 7, 2021. REUTERS/Eric Gaillard

A campaign poster of French far-right Rassemblement National (RN) party candidate Thierry Mariani is seen on an electoral panel ahead of the upcoming French regional elections in Saintes-Maries-de-la-Mer, France, June 7, 2021. Picture taken June 7, 2021. REUTERS/Eric Gaillard

A campaign poster of French far-right Rassemblement National (RN) party candidate Thierry Mariani is seen on an electoral panel ahead of the upcoming French regional elections in Saintes-Maries-de-la-Mer, France, June 7, 2021. Picture taken June 7, 2021. REUTERS/Eric Gaillard

People take a picture at the World War II Normandy American Cemetery and Memorial situated above Omaha Beach, during the 77th anniversary of D-Day, in Colleville-sur-Mer, Normandy, France, June 6, 2021. REUTERS/Stephane Mahe

People look as a C-130 aircraft flies over the World War II Normandy American Cemetery and Memorial situated above Omaha Beach, during the 77th anniversary of D-Day, in Colleville-sur-Mer, Normandy, France, June 6, 2021. REUTERS/Stephane Mahe

People look as a C-130 aircraft flies over the World War II Normandy American Cemetery and Memorial situated above Omaha Beach, during the 77th anniversary of D-Day, in Colleville-sur-Mer, Normandy, France, June 6, 2021. REUTERS/Stephane Mahe

A U.S. flag is seen in front of a tombstone as people walk at the World War II Normandy American Cemetery and Memorial situated above Omaha Beach, during the 77th anniversary of D-Day, in Colleville-sur-Mer, Normandy, France, June 6, 2021. REUTERS/Stephane Mahe

U.S. and French flags are seen in front of a tombstone at the World War II Normandy American Cemetery and Memorial situated above Omaha Beach, during the 77th anniversary of D-Day, in Colleville-sur-Mer, Normandy, France, June 6, 2021. REUTERS/Stephane Mahe

People walk at the World War II Normandy American Cemetery and Memorial situated above Omaha Beach, during the 77th anniversary of D-Day, in Colleville-sur-Mer, Normandy, France, June 6, 2021. REUTERS/Stephane Mahe

People walk at the World War II Normandy American Cemetery and Memorial situated above Omaha Beach, during the 77th anniversary of D-Day, in Colleville-sur-Mer, Normandy, France, June 6, 2021. REUTERS/Stephane Mahe

People visit the new British Normandy Memorial at Ver-sur-Mer, after an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

A view of the new British Normandy Memorial at Ver-sur-Mer, before an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

Lord Edward Llewellyn, British Ambassador to France, and France's Defence Minister Florence Parly attend the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

People visit the new British Normandy Memorial at Ver-sur-Mer, after an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

French soldiers stand on Juno Beach, near the new British Normandy Memorial at Ver-sur-Mer, after an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

People visit the new British Normandy Memorial at Ver-sur-Mer, after an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

People visit the new British Normandy Memorial at Ver-sur-Mer, before an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

A general view of the new British Normandy Memorial at Ver-sur-Mer, before an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

People visit the new British Normandy Memorial at Ver-sur-Mer, before an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

People visit the new British Normandy Memorial at Ver-sur-Mer, before an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

Lord Edward Llewellyn, British Ambassador to France, speaks with veteran David Mylchreest, 97, after the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

Veterans Charles Shay, 96, looks on after the official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

French Air Force Patrouille de France Team perform at the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool TPX IMAGES OF THE DAY

Britain's Prince Charles remotely on-screen attends the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

A person stands next to the new British Normandy Memorial at Ver-sur-Mer, before an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

Lord Edward Llewellyn, British Ambassador to France, looks on during the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

Lord Edward Llewellyn, British Ambassador to France, speaks during the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

Veteran David Mylchreest, 97, looks on as he attends the official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

Veteran David Mylchreest, 97, looks on as he attends the official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

Veteran David Mylchreest, 97, poses next to the new British Normandy Memorial at Ver-sur-Mer before the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

French Defence minister Florence Parly, veteran Charles Shay, 96, and veteran David Mylchreest, 97, attend the official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool REFILE - CORRECTING SURNAME

French soldiers stand during the official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

French Defence minister, Florence Parly, Prefect of Calvados Philippe Court, Veterans Charles Shay, 96, David Mylchreest, 97, attend the official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool REFILE - CORRECTING SURNAME

A general view of the new British Normandy Memorial at Ver-sur-Mer, before an official opening ceremony on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

The piper Jerome Levannier plays before the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

Veteran David Mulchreest, 97, poses next to the piper Jerome Levannier before the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool

Veteran David Mylchreest, 97, poses before the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool REFILE - CORRECTING SURNAME

Veteran David Mylchreest, 97, poses before the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool REFILE - CORRECTING SURNAME

Veteran David Mylchreest, 97, poses before the official opening ceremony of the British Normandy Memorial at Ver-sur-Mer, on the 77th anniversary of D-Day, France, June 6, 2021. REUTERS/Stephane Mahe/Pool REFILE - CORRECTING SURNAME

Canadian-born Eric Leboeuf, D-Day tour guide for the Gold Beach Company, poses in front of a 1943 Willys U.S. military Jeep during an interview with Reuters near a German battery in Longues-sur-Mer ahead of the 77th anniversary of D-Day in Normandy, France, June 3, 2021. Picture taken June 3, 2021. REUTERS/Lucien Libert

Canadian-born Eric Leboeuf, D-Day tour guide for the Gold Beach Company, drives a 1943 Willys U.S. military Jeep during an interview with Reuters in Longues-sur-Mer ahead of the 77th anniversary of D-Day in Normandy, France, June 3, 2021. Picture taken June 3, 2021. REUTERS/Lucien Libert

Canadian-born Eric Leboeuf, D-Day tour guide for the Gold Beach Company, poses in front of a 1943 Willys U.S. military Jeep during an interview with Reuters near a German battery in Longues-sur-Mer ahead of the 77th anniversary of D-Day in Normandy, France, June 3, 2021. Picture taken June 3, 2021. REUTERS/Lucien Libert

An employee works near tombstones at the World War II Normandy American Cemetery in Colleville-sur-Mer ahead of the 77th anniversary of D-Day in Normandy, France, June 2, 2021. Picture taken June 2, 2021. REUTERS/Lucien Libert

A French man honours a U.S. soldier at the World War II Normandy American Cemetery in Colleville-sur-Mer ahead of the 77th anniversary of D-Day in Normandy, France, June 2, 2021. Picture taken June 2, 2021. REUTERS/Lucien Libert

Sylvain Kast, a freelance D-Day beaches tour guide, poses for Reuters at Omaha Beach in Colleville-sur-Mer ahead of the 77th anniversary of D-Day in Normandy, France, June 1, 2021. Picture taken June 1, 2021. REUTERS/Lucien Libert

Sylvain Kast, a freelance D-Day beaches tour guide, poses for Reuters at Omaha Beach in Colleville-sur-Mer ahead of the 77th anniversary of D-Day in Normandy, France, June 1, 2021. Picture taken June 1, 2021. REUTERS/Lucien Libert

A woman, wearing a protective face mask, walks past electoral panels ahead of the upcoming French regional elections in Villefranche-Sur-Mer, France, May 31, 2021. REUTERS/Eric Gaillard

A trawler fishing for shrimps is seen during sunset front of the beach of Cayeux-sur-Mer, France, May 29,2021. Picture taken May 29, 2021. REUTERS/Pascal Rossignol

Young people enjoy sunset beside beach huts on a pebble beach, amid the coronavirus disease (COVID-19) outbreak in Cayeux-sur-Mer, France, May 29, 2021. Picture taken May 29, 2021. REUTERS/Pascal Rossignol

A young boy and his father enjoy sunset on the beach, amid the coronavirus disease (COVID-19) outbreak in Cayeux-sur-Mer, France, May 29, 2021. Picture taken May 29, 2021. REUTERS/Pascal Rossignol

A couple enjoy sunset beside beach huts on a pebble beach, amid the coronavirus disease (COVID-19) outbreak in Cayeux-sur-Mer, France, May 29, 2021. Picture taken May 29, 2021. REUTERS/Pascal Rossignol TPX IMAGES OF THE DAY

A woman walks along beach huts on a pebble beach at sunset, amid the coronavirus disease (COVID-19) outbreak in Cayeux-sur-Mer, France, May 29, 2021. Picture taken May 29, 2021. REUTERS/Pascal Rossignol

The statue of Napoleon I in chasseur uniform (1962) by French sculptor Pierre Stenne, atop the Column of the Grande Armee, is silhouetted in front of a full moon, known as the "Super Pink Moon", in Wimille, near Boulogne-sur-Mer, France, April 26, 2021. Picture taken April 26, 2021. REUTERS/Sarah Meyssonnier

The statue of Napoleon I in chasseur uniform (1962) by French sculptor Pierre Stenne, atop the Column of the Grande Armee, is silhouetted in front of a full moon, known as the "Super Pink Moon", in Wimille, near Boulogne-sur-Mer, France, April 26, 2021. Picture taken April 26, 2021. REUTERS/Sarah Meyssonnier TPX IMAGES OF THE DAY

Aerial view of the fishing port in Boulogne-sur-Mer, France, April 23, 2021. Picture taken with a drone. REUTERS/Pascal Rossignol

Les équipes de sauvetage de plusieurs pays se sont engagées dans une course contre la montre pour retrouver le sous-marin indonésien disparu dans la mer de Bali avec 53 membres d'équipage.

Trawlers are seen in the fishing port during sunset in Boulogne-sur-Mer, France, April 22, 2021. Picture taken April 22, 2021. REUTERS/Pascal Rossignol

Seagulls stand on a trawler in the fishing port during sunset in Boulogne-sur-Mer, France, April 22, 2021. Picture taken April 22, 2021. REUTERS/Pascal Rossignol

A fisherman is seen in the fishing port during sunrise in Boulogne-sur-Mer, France, April 23, 2021. REUTERS/Pascal Rossignol

A trawler sails to the fishing port during sunset in Boulogne-sur-Mer, France, April 22, 2021. Picture taken April 22, 2021. REUTERS/Pascal Rossignol