This comes after Harry and Meghan Markle were photographed taking part in a small party honoring the annual celebrations in the UK. The photos show the Duke and Duchess of Sussex at Los Angeles National Cemetery in California.
There, Prince Harry, dressed in a navy blue suit with military medals, gently placed flowers on the floor to pay his respects.
Meanwhile in London, members of the royal family attended mass at the memorial.
Prince William was among those who stepped forward to lay a wreath in honor of the fallen soldiers.
However, Prince Harry’s participation elicited violent reactions from some observers who claimed it appeared to be a publicity stunt.
They included Good Morning Britain host, Pierce Morgan, who took to Twitter to accuse Harry and Meghan of trying to get “media attention”.
A source close to Prince Harry responded to the criticism and denied that the Duke’s personal service was linked to propaganda.
READ: Prince Charles re-wore a 34-year-old suit at Meghan Markle and Harry’s royal wedding
The Duke is the founder of Invictus Games – a sports competition dedicated to wounded and female soldiers.
Supporters of the Duke also took to social media to advocate for personal service in Los Angeles.
One wrote, “If they do nothing they will be cursed, and when they do they are cursed.
“The guy served two terms in Afghanistan and founded Invictus Games.”
Speaking on a recently declassified military podcast, Prince Harry gets an insight into his military background.
He said: Memorial Day for me is a moment of respect and hope. Respect for those who have come before us and hope for a safer world. Even when we’re not all together, we always remember together. “
According to The Times, the Duke asked the royal family to place a wreath at the memorial on his behalf during his Sunday service in the UK.
However, this request was reportedly rejected as it no longer represents the monarchy.
He and Meghan stepped back from their top royals in March this year as they moved to the United States.
As a result, Prince Harry was forced to give up his honorary military titles.