Prince Harry will return to the U.K. to celebrate 10 years of the Invictus Games, the sports competition he started for wounded military personnel. The royal will attend a “service of thanksgiving” at St Paul’s Cathedral in London on May 8, according to the Invictus Games Foundation. The organization said the Prince along with British actor Damian Lewis and representatives from the Invictus Games participating nations, including veterans, will come together to mark the occasion. [time-brightcove not-tgx=”true”] Prince Harry will be giving a reading at the service.