On Monday William and Kate will make their first public appearance together this year
The engagement will be the first time the couple have officially been seen together since Christmas Day, when they attended the traditional church service at Sandringham with other members of the royal family.
Kate was five months pregnant when she attended the parade last year. Luckily for the Duchess, William was by her side when she suffered a slight mishap on the day, catching the heel of her black court shoe in a grate, but she was able to lean on him for support while bending down to dislodge the heel.
Two young girls greeted the Duchess and gave her a posy of flowers
Guards at the barracks will no doubt be keen to congratulate the Duke and Duchess on the birth of Prince George as last year Kate revealed to one soldier that she was hoping that she and William would have a boy.