title: Sergeant Stubby
context: Sergeant Stubby (1916 – March 16, 1926) was a dog who is the official mascot of the 102nd Infantry Regiment (United States) and was assigned to the 26th (Yankee) Division in World War I. He served for 18 months and participated in seventeen battles on the Western Front. He saved his regiment from surprise mustard gas attacks, found and comforted the wounded, and once caught a German soldier by the seat of his pants, holding him there until American soldiers found him. His actions were well-documented in contemporary American newspapers.[2][3][4]
question: When did Sgt. Stumpy serve?
answers: 1916 – March 16, 1926