Prince Harry went through psychological testing after his deployments to Afghanistan.
Prince Harry
The 31-year-old royal - who was a member of the British Army for a decade and served two tours of duty in Afghanistan - revealed how important he thinks debriefing is after serving in a combat zone.
He told Sky News: "The army put you through a day, two-day course on the way back through Cyprus, which is crucial to everybody."
Harry also revealed that he still suffers graphic flashbacks to his time in combat.
He said: "I described it to someone ages ago as one of those slide shows that go through your mind.
"If you've got a good imagination as well, everything that you see, especially if it's something that is quite powerful, then that slide is in there.
"It's always in there, and if you have dark moments in your life those slides will pop up.
"You know there are images I've been lucky enough not to see, but there have been images that I've been unfortunate to see, nothing like some of these [injured veterans], but, yes, there is a percentage of me being able to relate to exactly what they go through."
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