By taking a paint brush to a war memorial in Hyde Park, the Duchess of Cornwall lent her support to a new campaign called 'In Memoriam 2014'.
It aims to protect the nation's war memorials by marking them with 'SmartWater' - a traceable liquid that should deter metal thieves.
Project Manager Jon Teare explains more in the clip below.
More top news
A teenager has been arrested after a mass bomb hoax closed hundreds of schools across the UK.
The Metropolitan Police have confirmed the charge following his arrest on Sunday. He will appear at Wimbledon Magistrates’ Court on April 4.
Declan Donnelly will host the show alone when the show returns on March 31 following his partner Ant McPartlin's return to rehab, ITV says.