The brief statement released by Kensington Palace gave little by the way of details, reading: "The Duke of Cambridge will undertake an official visit to Kuwait and Oman at the request of the Foreign and Commonwealth Office.
"The visit will take place between Sunday 1st and Wednesday 4th December.
"Further details will be advised in due course."
Royal fans were quick to express their sadness of Kate being left England all alone.
One Twitter user wrote: "Ahhh wish the Duchess of Cambridge was going too!"
Remembrance Day is one of the most important days in the Royal Family's calendar, with the Duke and Duchess of Sussex and the Duke and Duchess Cambridge set to meet for the first time in months to attend the Festival of Remembrance at the Royal Albert Hall in London on Saturday 9 November.
The couples were last seen together back in July, as both families were attending the King Power Royal Charity Polo Match with their children to watch Prince Harry and Prince William compete against each other for the Memorial Polo Trophy.