Sergeant Stubby (1916 or 1917 – March 16, 1926), has been called the most decorated war dog of World War I and the only dog to be nominated for rank and then promoted to sergeant through combat, a claim for which there is no official documentary evidence, but is recognized in connection with an exhibition at the Smithsonian Institution. He was the official mascot of the 102nd Infantry, assigned to the 26th (Yankee) Division.