Trafalgar Square was chilly today, good preparation for Prince Harry's polar trek.
The young prince was at the central London square for the media launch of the expedition.
Taking to the stage he said, "Even when you've lost a leg or lost an arm, or whatever the illness may be, you can achieve pretty much anything if you put your mind to it…The cause is for one cause and one cause only and that is to raise awareness for all the wounded, sick and injured, whether it's in military life or whether it's in civilian life."
Harry, who spent time serving in Afghanistan flying Apache helicopters, added, "This trip is another way of reminding everybody that as Afghanistan draws down and these guys aren't in the news anymore so than they already are, it's a reminder to everybody that support must continue."
He and four team-mates, who all lost limbs in Afghanistan, will face even temperatures of -49F and 50mph winds.