The Queen will join wounded veterans today to unveil a memorial paying tribute to soldiers killed while serving in an Army infantry regiment.
Family and friends of fallen service personnel from the Duke of Lancaster's Regiment are also expected to attend the ceremony at the National Memorial Arboretum in Alrewas, Staffordshire.
The regiment, which recruits in North-West England, was formed in 2006 after an amalgamation of the King's Own Royal Border Regiment, the King's Regiment, and the Queen's Lancashire Regiment.
As well as unveiling the memorial, featuring a lion cast in bronze, the Queen is expected to lay down a wreath marking the regiment's sacrifice.
The Queen, the Colonel-in-Chief of the regiment, will also meet officers from the regiment at the 150-acre arboretum, operated by the Royal British Legion.