The Prince and Princess of Wales made an unannounced appearance in Northern Ireland today, as they kicked off a series of Royal duties. William and Kate travelled to County Tyrone, where they were treated to a ride in a fire truck and watched trainee firefighters take part in drills at the Northern Ireland Fire and Rescue Service Learning and Development College. Earlier in the day, Kate styled a signature look of hers, donning an Alexander McQueen coat dress in olive green, but right before