All eyes are on the United States as King Charles III begins his visit, described as the most important since he ascended the throne.
The visit aims to restore the "special relationship" between London and Washington, following noticeable tensions in recent times.
What are the main prohibitions for the meeting between King Charles and Trump?
Reports have revealed a precise list of prohibitions governing the meeting, the most notable being the ban on serving garlic and onions in meals.
This decision aims to avoid any odors that might affect the atmosphere of the close conversations, reflecting the sensitivity of royal protocol.
Will Trump bow to King Charles? Protocol rules clarify
Instructions indicate that U.S. presidents do not bow to any other leader, including the British monarch.
There has also been careful coordination of attire to avoid colors with sensitive connotations such as black (mourning) or white on certain occasions.
How is gift diplomacy managed between Britain and America?
The working team focuses on selecting gifts with historical and sentimental value to avoid previous embarrassments.
The incident of Barack Obama gifting an "iPad" to the late queen, which was considered inappropriate protocol-wise, is recalled here.
Why are royal visits to the White House described as "political ballet"?
Former officials describe these meetings as akin to a ballet dance, where everyone moves with precision and great harmony.
The importance of these visits extends beyond politics to cultural and social dimensions, as seen in Princess Diana's dance with John Travolta.