Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

French military troop stand before a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023 on the first day of a state visit of Britain's King Charles and Britain's Queen Camilla to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles attends a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's Queen Camilla and French President Emmanuel Macron's wife Brigitte Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of Britain's King Charles state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron greet people after attending a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron wave after attending a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles greets people after attending a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles greets people after attending a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's Queen Camilla and French President Emmanuel Macron's wife Brigitte Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of Britain's King Charles State visit to France. YOAN VALAT/Pool via REUTERS 

Britain's Queen Camilla and French President Emmanuel Macron's wife Brigitte Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of Britain's King Charles State visit to France. YOAN VALAT/Pool via REUTERS 

Britain's Queen Camilla and French President Emmanuel Macron's wife Brigitte Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of Britain's King Charles State visit to France. YOAN VALAT/Pool via REUTERS 

Britain's Queen Camilla and French President Emmanuel Macron's wife Brigitte Macron greet people after attending a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of Britain's King Charles State visit to France. YOAN VALAT/Pool via REUTERS 

Britain's Queen Camilla and French President Emmanuel Macron's wife Brigitte Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of Britain's King Charles State visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron leave by car after a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron leave by car after a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron leave by car after a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron leave by car after a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's Queen Camilla and French President Emmanuel Macron's wife Brigitte Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of Britain's King Charles State visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles, his wife Queen Camilla, and French President Emmanuel Macron with his wife Brigitte Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles, his wife Queen Camilla, and French President Emmanuel Macron's wife Brigitte Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles attends a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles attends a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

PARIS, FRANCE - SEPTEMBER 20: King Charles III and President of France, Emmanuel Macron are pictured during a ceremonial welcome at The Arc De Triomphe on September 20, 2023 in Paris, France. The King and The Queen's first state visit to France will take place in Paris, Versailles and Bordeaux from Wednesday 20th to Friday 23rd 2023. The visit had been initially scheduled for March 26th - 29th but had to be postponed due to mass strikes and protests. Chris Jackson/Pool via REUTERS 

Britain's King Charles and French President Emmanuel Macron attend a remembrance ceremony at Arc de Triomphe Paris, France, 20 September 2023, on the first day of a state visit to France. YOAN VALAT/Pool via REUTERS 

PARIS, FRANCE - SEPTEMBER 20: The Presidential convoy departs after a ceremonial welcome at The Arc De Triomphe for King Charles III And Queen Camilla on September 20, 2023 in Paris, France. The King and The Queen's first state visit to France will take place in Paris, Versailles and Bordeaux from Wednesday 20th to Friday 23rd 2023. The visit had been initially scheduled for March 26th - 29th but had to be postponed due to mass strikes and protests. Chris Jackson/Pool via REUTERS 

PARIS, FRANCE - SEPTEMBER 20: King Charles III and President of France, Emmanuel Macron talk during a ceremonial welcome at The Arc De Triomphe on September 20, 2023 in Paris, France. The King and The Queen's first state visit to France will take place in Paris, Versailles and Bordeaux from Wednesday 20th to Friday 23rd 2023. The visit had been initially scheduled for March 26th - 29th but had to be postponed due to mass strikes and protests. Chris Jackson/Pool via REUTERS 

PARIS, FRANCE - SEPTEMBER 20: King Charles III attends a ceremonial welcome at The Arc De Triomphe on September 20, 2023 in Paris, France. The King and The Queen's first state visit to France will take place in Paris, Versailles and Bordeaux from Wednesday 20th to Friday 23rd 2023. The visit had been initially scheduled for March 26th - 29th but had to be postponed due to mass strikes and protests. Chris Jackson/Pool via REUTERS 

PARIS, FRANCE - SEPTEMBER 20: Brigitte Macron waves during a ceremonial welcome at The Arc De Triomphe on September 20, 2023 in Paris, France. The King and The Queen's first state visit to France will take place in Paris, Versailles and Bordeaux from Wednesday 20th to Friday 23rd 2023. The visit had been initially scheduled for March 26th - 29th but had to be postponed due to mass strikes and protests. Chris Jackson/Pool via REUTERS 

PARIS, FRANCE - SEPTEMBER 20: Brigitte Macron and Queen Camilla talk after a ceremonial welcome at The Arc De Triomphe on September 20, 2023 in Paris, France. The King and The Queen's first state visit to France will take place in Paris, Versailles and Bordeaux from Wednesday 20th to Friday 23rd 2023. The visit had been initially scheduled for March 26th - 29th but had to be postponed due to mass strikes and protests. Chris Jackson/Pool via REUTERS 

PARIS, FRANCE - SEPTEMBER 20: King Charles III and President of France, Emmanuel Macron stand in front of the Tomb of the Unknown Soldier. The Franco-British Wreath decorated with the ribbons of The King and the President of France can be seen during the welcome ceremony at The Arc De Triomphe on September 20, 2023 in Paris, France. The King and The Queen's first state visit to France will take place in Paris, Versailles and Bordeaux from Wednesday 20th to Friday 23rd 2023. The visit had been initially scheduled for March 26th - 29th but had to be postponed due to mass strikes and protests. Chris Jackson/Pool via REUTERS 

PARIS, FRANCE - SEPTEMBER 20: King Charles III shakes hands with representatives of local veteran organisations, scout and guide organisations, and the British School of Paris during a ceremonial welcome at The Arc De Triomphe on September 20, 2023 in Paris, France. The King and The Queen's first state visit to France will take place in Paris, Versailles and Bordeaux from Wednesday 20th to Friday 23rd 2023. The visit had been initially scheduled for March 26th - 29th but had to be postponed due to mass strikes and protests. Chris Jackson/Pool via REUTERS 

PARIS, FRANCE - SEPTEMBER 20: King Charles III shakes hands with representatives of local veteran organisations, scout and guide organisations, and the British School of Paris during a ceremonial welcome at The Arc De Triomphe on September 20, 2023 in Paris, France. The King and The Queen's first state visit to France will take place in Paris, Versailles and Bordeaux from Wednesday 20th to Friday 23rd 2023. The visit had been initially scheduled for March 26th - 29th but had to be postponed due to mass strikes and protests. Chris Jackson/Pool via REUTERS 

PARIS, FRANCE - SEPTEMBER 20: King Charles III shakes hands with representatives of local veteran organisations, scout and guide organisations, and the British School of Paris during a ceremonial welcome at The Arc De Triomphe on September 20, 2023 in Paris, France. The King and The Queen's first state visit to France will take place in Paris, Versailles and Bordeaux from Wednesday 20th to Friday 23rd 2023. The visit had been initially scheduled for March 26th - 29th but had to be postponed due to mass strikes and protests. Chris Jackson/Pool via REUTERS