The service included readings by veterans and political leaders, musical performances and re-enactments from D-Day.
World leaders including Donald Trump, the Queen, Angela Merkel and Theresa May were in the royal box to watch the event.
Here are some of the best pictures from the service.

13. D-Day 75
World leaders during the D-Day Commemorations. Picture: Photo by Dan Kitwood/Getty Images | Getty Images Photo: -

14. D-Day 75
US President Donald Trump stands and speaks during the event. Picture: DANIEL LEAL-OLIVAS/AFP/Getty Images | Getty Images Photo: -

15. D-Day 75
Performers speak on stage during the D-Day Commemorations. Picture: Dan Kitwood/Getty Images | Getty Images Photo: -

16. D-Day 75
French President Emmanuel Macron (L), Theresa May, Prince Charles, Prince of Wales and Britain's Queen Elizabeth II attend the event. Picture: DANIEL LEAL-OLIVAS/AFP/Getty Images | Getty Images Photo: -

