The Duchess of Cambridge has emptied Prince William's wardrobe of his best suits and some casual wear and despatched them post haste to the South Atlantic.
The move is in direct response to sabre rattling by Argentine President Cristina Kirchner who has urged the UK to "give peace a chance."
President Kirchner's comments follow the deployment of the Royal Navy's most modern warship - HMS Dauntless - to the Falklands. The Prince has also been sent in his role as an RAF search and rescue operator.
In an address on Tuesday, Ms Fernandez accused the UK of "militarising the South Atlantic one more time.
"We cannot interpret in any other way the deployment of an ultra-modern destroyer accompanying the heir to the throne, who we would prefer to see in civilian attire."
To defuse the situation, Princess Kate has been asked by the Ministry of Defence to "sort out a few bits and pieces" from her husband's wardrobe.
Said a spokesman: "We suggested she put together one or two of his Savile Row suits and a couple of sporting jackets with slacks and loafers and maybe a some of his favourite more casual items.
"They've been sent on a fast support ship and will catch up with the Prince in a couple of days.
"That should keep the Argentines happy."