SALT LAKE CITY (ABC4 News) The U.S. Postal Service is issuing new stamps that are sure to please dog lovers.

Four new stamps feature military working dogs. The forever stamps depict four breeds commonly used in the armed forces: the German Shepherd, Labrador Retriever, Belgian Malinois, and Dutch Shepherd.

Dogs have served in the U.S. military since World War I. Their heightened sense of smell and convenient size make them suitable to perform a variety of tasks, including search and rescue.