An incredible image of twelve members of the Household Cavalry hiding in the jungle has had internet users the world over scratching their heads.
The photograph shows a dozen soldiers from one of the British Army's most elite units camouflaged in the foliage of a forest in Brunei.
The unit posted the photograph along with others on its social media accounts, as it carries out maneuvers in the jungle as part of its specialist training regime.
The exercise was part of it Close Target Reconnaissance training. One post read: "[This] is what the Household Cavalry Regiment does best.
"The intelligence gathered by this complex, deadly art will determine the British Army's success in battle. The Cavalry are honing vital skills in the Brunei Jungle that could ultimately save lives on future operations."
It also posted a Mannequin Challenge on its Facebook page, along with the caption: 'Our soldiers are currently out in Brunei as part of a month long exercise improving reconnaissance and patrolling skills in the world's harshest environment. This truly makes them the #TrustedGuardians!'
The Household Cavalry serve as the Queen's official bodyguard and is part of the Household Division. It is made up of the two most senior regiments of the British Army, namely the Blues and Royals and the Life Guards.
Notable members include Prince William, Duke of Cambridge and his brother Prince Harry, who were both members of the Blues and Royals, and singer James Blunt, who served in the Life Guards.
Also making up the Household Division, along with the Household Cavalry, is the Queens Guards.
The Queens Guards are charged with protecting the monarch's residences in London as well as Windsor Castle and the Palace of Holyroodhouse in Edinburgh.
All seven regiments of the Household Division predate the English Restoration in 1660 and have been guarding the sovereign's palaces since the reign of King Charles II.
Ceremonial duties include the Trooping the Colour, marching on Remembrance Sunday and providing a guard for the Queen's Birthday Parade and the State Opening of Parliament.
Among the most notable of the regiment's battle honours is the Battle of Waterloo, where 2,000 cavalrymen prevented about 15,000 French infantry from achieving a flanking manoeuvre against Wellington's forces.
Did you spot all 12? Look below for the answer.