Prince Harry, seen here undergoing instruction in an armoured vehicle in 2007, has qualified as an Apache attack helicopter pilot. REUTERS/Crown Copyright
The ministry said the prize recognizes the student whose performance is the best among their peer group.
Known in the military as Capt. Wales, the third-in-line to the British throne was awarded his prize on Wednesday.
The prince, who trained in California, in southern Arizona and in Britain, will now fly Apaches on exercises in the UK.
In December, a British newspaper said Harry had acknowledged he will be deployed to Afghanistan for a second time. He briefly served there from 2007. The defence ministry has declined to confirm details of the prince's future deployments.