Prince William and Kate Middleton took their new puppy for a stroll in Wales last week. The family of three took a walk along water in their current hometown of Angelsey. It was the first time the Cocker Spaniel was seen with William and Kate, and palace officials have since confirmed that the dog is, in fact, theirs. A spokesperson said the spaniel is "a few months old" and came from "a close family connection." William and Kate were able to enjoy a warmer climate recently, though. They went on vacation with her parents, Michael and Carole Middleton, to the island of Mustique. Pippa and James Middleton went along as well. The getaway came before William is due to head off this evening on tour of duty in the Falkland Islands as a member of the Royal Air Force — to mark his mission, take a look at the best pictures of Prince William in uniform.