Maj. Gretchen Powers, the chief of Outpatient Services at Veterinary Medical Center Europe, examines a dog during the 2021 Iditarod. Two Army veterinarians from Public Health Command Europe recently volunteered to travel to Alaska to support one of the most physically demanding sporting events in the world, the Iditarod. The Iditarod is a nearly 1,000 mile sled dog race that has been held in March since 1973.