What is a VCO?

• A. Vehicle Control Officer
• B. Volunteer Corps Officer
• C. Veterinary Compliance Officer
• D. Veterinarian Corps Officer

Answer: (D)

VCO stands for Veterinarian Corps Officer. In military units, these officers are licensed veterinarians who provide medical and surgical care, preventive medicine, and health management for animals, including military working dogs. They oversee vaccination programs, disease prevention, treatment protocols, dental care, and overall welfare, and they advise handlers and unit leaders on health issues and medical readiness. The other options don’t reflect the standard military veterinary role: Vehicle Control Officer relates to vehicles, Volunteer Corps Officer isn’t a typical title, and Veterinary Compliance Officer isn’t the established military term. So the correct understanding is that a VCO is a Veterinarian Corps Officer.