Prince Harry has gone from Las Vegas to Afghanistan. Britain's Ministry of Defense says the prince is back in the country to fly Apache attack helicopters during a four-month tour of combat duty. The 27-year-old looked relaxed if slightly tired today, and gave a thumbs-up after a long journey on a standard troop flight from England. Capt. Harry Wales, as he is known, wore his combat uniform upon arrival and joined his 100-strong unit—the 662 Squadron, 3 Regiment Army Air Corps.