Britain's Prince Harry, the Expedition Patron, arrives for a welcome home news conference for the members of the Walking With The Wounded South Pole Allied Challenge 2013 team, in central  London, Tuesday, Jan. 21, 2014. The Walking With The Wounded Virgin Money South Pole Allied Challenge 2013 concluded on Friday 13 December, when three teams of wounded servicemen and women successfully reached the South Pole after crossing 200km of Antarctic plateau. (AP Photo/Lefteris Pitarakis, Pool)

Britain's Prince Harry, the Expedition Patron, arrives for a welcome home news conference for the members of the Walking With The Wounded South Pole Allied Challenge 2013 team, in central London, Tuesday, Jan. 21, 2014. The Walking With The Wounded Virgin Money South Pole Allied Challenge 2013 concluded on Friday 13 December, when three teams of wounded servicemen and women successfully reached the South Pole after crossing 200km of Antarctic plateau. (AP Photo/Lefteris Pitarakis, Pool)