Being part of the military is a huge part of life for male members of the royal family, and Prince William is no different.
The Duke of Cambridge, who is second in line to the throne, served his country in the Royal Airforce between 2009 and 2017 - starting as a Flight Lieutenant before going on to be a helicopter pilot, assisting in a number of search and rescue operations.
During that time, Wills formed close bonds with his colleagues - so much so that he was treated just like any other member of the team, rather than a royal.