Christine Rossen (left), a certified veterinary technician, holds Barkley, a terrier mix, while he receives an exam by Dr. Laurel Rhodes, a veterinarian at the base veterinary treatment facility, for his health certificate, May 20, 2015. (U.S. Marine Corps photo by Kristen Wong/Released) - Christine Rossen (left), a certified veterinary technician, holds Barkley, a terrier mix, while he receives an exam by Dr. Laurel Rhodes, a veterinarian at the base veterinary treatment facility, for his health certificate, May 20, 2015. (U.S. Marine Corps photo by Kristen Wong/Released)