Today, Prince William is performing his last shift as a pilot with the East Anglian Air Ambulance in the UK.
Last year, BBC Future spent two days with Prince William and his colleagues at their base in Cambridgeshire, discovering how the team relate to one another and the vital emergency work they do.
Get a taster in the video above, where William and his co-pilot discuss their job and relationship – as well as the ways in which they tease each other.
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