The article discusses Lieutenant Colonel Edwin Hautenville Richardson, advocate for the use of dogs in the military in both times of war and peace and officer in the British Army during World War I. Military dogs trained by Richardson served roles including sentry dogs, ambulance dogs, and messenger dogs and his training methods were notable for being rewards-based, a training approach not generally advocated during the period. Richardson's books including "British War Dogs: Their Training and Psychology" and "Forty Years With Dogs" are considered.