Though known for their peanut size, Yorkies are in fact little powerhouses. In World War II, a dog named Smokey became one of the most famous Yorkshire Terriers of all time. Adopted by U.S. troops, this tough little dog helped soldiers lay communication lines in the war-torn Philippines. His petite size allowed him to thread the lines through narrow underground passages. After the war, Smokey became a celebrity--appearing on television 42 times. Today,...