Rags, a mixed-breed terrier, fought alongside the U.S. 1st Infantry division in World War I. Pvt. James Donovan stumbled upon the dog while he was in Paris — initially using the dog as an excuse to avoid being arrested for being away without leave. He returned to duty, bringing along the dog as a division mascot. Rags soon became a carrier dog, delivering notes across dangerous fields to various posts.
Rags and Donovan were both involved in a serious gas attack and were shipped back to the United States. Donovan died in the hospital, but Rags survived and became a celebrity around the country, eventually ascending to the rank of lieutenant colonel. He was buried with military honors in Silver Spring, Md.