It is the first time since Charles assumed the throne that he will visit one of the 14 countries outside the U.K. where he is head of state.

The anon royal aide adds that “It’s all about proving he isn’t dying, to be blunt. The problem is that if anything goes wrong, people will leap to the opposite conclusion. It’s make-or-break for Charles, I think."

The physicians will join the royal entourage after news broke that the monarch decided to “pause” cancer treatments while abroad.