Members of the Royal Family will attend engagements in each nation, including public events marking the occasion."

Her Majesty and late husband Prince Philip did likewise themselves, during the queen’s Golden and Diamond Jubilees.

Platinum Jubilee celebrations kick off on Thursday, June 2 and will continue throughout the long weekend.

Prince William looks thoughtful

Also slated to be in attendance are royal defectors Prince Harry and Meghan Markle.

As a result, William has been quietly mending fences with his brother behind the scenes, perThe Mirror.

However, just days before everything’s set to begin, a military expert is already criticizing William.

Prince William salutes on his horse

“William’s horse looks drugged.

Its head is on the floor.

It’s a disgrace,” one stated.

Queen Elizabeth II and Prince Charles sitting on thrones

Horses of the Household Cavalry are typically used for such events.

This is the first time in 70 years she won’t be taking part.

Her crown, however, was positioned on the throne next to Charles.