LONDON (AFP) - Britain's Prince Harry was forced to drop his trousers during a military parade to prove he did not have his girlfriend's name tattooed on his royal rear, a British newspaper said. ADVERTISEMENT The 21-year-old son of Prince Charles, the Prince of Wales, is halfway through his British Army officer training course at the elite Sandhurst academy. The Sun, Britain's biggest-selling daily, said Harry, third in line to the throne, was ordered to bare his bum after rumours spread he had blonde Zimbawean-born girlfriend Chelsy Davy's name inked on. During a parade, a colour sergeant yelled: "Cadet Wales,...