Veterans pose for a group picture as they participate in an event to commemorate the 80th anniversary of D-Day, in Portsmouth, Britain, June 3, 2024. REUTERS/Dylan Martinez

Britain's King Charles and French President Emmanuel Macron attend a ceremony to mark the 80th anniversary of D-Day at the British Normandy Memorial of Ver-sur-Mer, France, June 6, 2024. REUTERS/Hannah McKay

Silhouettes representing British soldiers who died during World War II are on display at the British Memorial by the charitable association "Standing with giants", ahead of the 80th anniversary of the 1944 D-Day landings in Ver-sur-Mer, Normandy region, France, June 1, 2024. REUTERS/Benoit Tessier TPX IMAGES OF THE DAY

French President Emmanuel Macron and Achille Muller, 98, last survivor of the Free French Forces, attend a ceremony to pay homage to the Saint Marcel maquis, a force of French Resistance fighters during World War II and the French SAS (Special Air Service) paratroopers, in Plumelec, Brittany, on the eve of the 80th anniversary of the 1944 D-Day landings in Normandy, France June 5, 2024. REUTERS/Benoit Tessier/Pool

A person touches a headstone at the World War II Normandy American Cemetery and Memorial situated above Omaha Beach ahead of the 80th anniversary of the 1944 D-Day landings in Colleville-sur-Mer, Normandy region, France, June 2, 2024. REUTERS/Benoit Tessier

French President Emmanuel Macron awards US WW II veteran Bob Pedigo with the Legion of Honor during a commemorative ceremony to mark D-Day 80th anniversary, Thursday, June 6, 2024 at the US cemetery in Colleville-sur-Mer, Normandy. Daniel Cole/Pool via REUTERS

People attend a ceremony to pay homage to the Saint Marcel maquis, a force of French Resistance fighters during World War II and the French SAS (Special Air Service) paratroopers, in Plumelec, Brittany, on the eve of the 80th anniversary of the 1944 D-Day landings in Normandy, France June 5, 2024. REUTERS/Benoit Tessier/Pool

World War II Veteran Anna Mae Krier "Rosie the Riveter", 98, arrives at Deauville airport from Atlanta to commemorate the 80th anniversary of the 1944 D-Day landings in Deauville, Normandy region, France, June 3, 2024. REUTERS/Benoit Tessier TPX IMAGES OF THE DAY

World War II reenactors gather ahead of the 80th anniversary of the 1944 D-Day landings in Sainte-Mere-Eglise, Normandy region, France, June 2, 2024. REUTERS/Benoit Tessier

World War II Veteran 1st Lt. Edward L."Bud" Berthold, 104, arrives at Deauville airport from Atlanta to commemorate the 80th anniversary of the 1944 D-Day landings in Deauville, Normandy region, France, June 3, 2024. REUTERS/Benoit Tessier

British veteran Bernard Morgan, 100, salutes at Bayeux cemetery, on the day of commemorative events for the 80th anniversary of D-Day, in Bayeux, France, June 5, 2024. REUTERS/Hannah McKay

World War II reenactors gather ahead of the 80th anniversary of the 1944 D-Day landings in Carentan-les-Marais, Normandy region, France, June 2, 2024. REUTERS/Benoit Tessier

Britain's King Charles, Queen Camilla, French President Emmanuel Macron and his wife Brigitte Macron attend a ceremony to mark the 80th anniversary of D-Day at the British Normandy Memorial of Ver-sur-Mer, France, June 6, 2024. REUTERS/Hannah McKay

Veterans leave on board the Mont St Michel ship en route to Caen in France, as part of events to commemorate the 80th anniversary of D-Day, in Portsmouth, Britain, June 4, 2024. REUTERS/Dylan Martinez

World War II Veteran SSgt Jake M. Larson, 101, arrives at Deauville airport from Atlanta to commemorate the 80th anniversary of the 1944 D-Day landings in Deauville, Normandy region, France, June 3, 2024. REUTERS/Benoit Tessier

Paratroopers jump into Normandy to pay tribute to the soldiers who parachuted in on D-Day, in Sannerville, Normandy, France, June 5, 2024. UK MOD Crown copyright 2024/Handout via REUTERS THIS IMAGE HAS BEEN SUPPLIED BY A THIRD PARTY NO RESALES. NO ARCHIVES MANDATORY CREDIT.

U.S President Joe Biden, first lady Jill Biden, French President Emmanuel Macron and his wife Brigitte Macron attend a ceremony to mark the 80th anniversary of D-Day at the Normandy American Cemetery and Memorial in Colleville-sur-Mer, France, June 6, 2024. REUTERS/Elizabeth Frantz

World War II Veteran Tec 5 Cletis A. Bailey, 98, arrives at Deauville airport from Atlanta to commemorate the 80th anniversary of the 1944 D-Day landings in Deauville, Normandy region, France, June 3, 2024. REUTERS/Benoit Tessier

Pictures are shown on a screen during a D-Day national commemoration event in Portsmouth, Britain, June 5, 2024. Kin Cheung/Pool via REUTERS

The RAF Red Arrows perform a fly-past during a D-Day national commemoration event in Portsmouth, Britain, June 5, 2024. Leon Neal/Pool via REUTERS

World War II veterans attend a ceremony to mark the 80th anniversary of D-Day at the Normandy American Cemetery and Memorial in Colleville-sur-Mer, France, June 6, 2024. REUTERS/Elizabeth Frantz

A French soldier of the 1st RPIMa Special Forces parachutes during a ceremony to pay homage to the Saint Marcel maquis, a force of French Resistance fighters during World War II and the French SAS (Special Air Service) paratroopers, in Plumelec, Brittany, on the eve of the 80th anniversary of the 1944 D-Day landings in Normandy, France June 5, 2024. REUTERS/Benoit Tessier/Pool TPX IMAGES OF THE DAY

Veterans attend a ceremony to mark the 80th anniversary of D-Day at the Normandy American Cemetery and Memorial in Colleville-sur-Mer, France, June 6, 2024. REUTERS/Christian Hartmann

World War II reenactors gather ahead of the 80th anniversary of the 1944 D-Day landings in Sainte-Mere-Eglise, Normandy region, France, June 2, 2024. REUTERS/Benoit Tessier

World War II reenactors gather ahead of the 80th anniversary of the 1944 D-Day landings in Sainte-Mere-Eglise, Normandy region, France, June 2, 2024. REUTERS/Benoit Tessier

Delta Air Lines First Officers Theresa Livingston and Abby Kent, both of whom are U.S. military veterans, wave from the cockpit of the plane they operated with a third captain, as they hold French and U.S. flags at the Deauville-Normandie Airport, in Deauville, Normandy, France, June 3, 2024. REUTERS/Benoit Tessier TPX IMAGES OF THE DAY. REFILE - CORRECTING SUBJECTS DESCRIPTION FROM "WOMEN WEARING DELTA AIRLINES PILOT HATS" TO "DELTA AIRLINES FIRST OFFICERS THERESA LIVINGSTON AND ABBY KENT".