Fanfares and final touches as cavalry prepares for royal wedding

As the royal family gets ready for the wedding of Prince Harry to Meghan Markle, preparations are also underway at the barracks of the Household Cavalry Mounted Regiment. Soldiers from the regiment will accompany the happy couple through the streets of Windsor, and although they are used to performing a ceremonial role at state occasions, this professional engagement has a personal twist - for some Prince Harry is a former colleague.