Back in the ‘80s I bought a Doberman and took him for professional training. The owners of the school told me about a book, ‘The Koehler Method of Guard Dog Training’. Half of the book is dedicated to basic obedience training and the other half guard/protection dog training.
William Koehler is a proponent of old school animal training meant to work with ALL dogs. I have personally trained over a dozen dogs since, including several friends dogs using the methods learned from his book. Everyone who knows me remarks on how well behaved my dogs are. I still have four.
My son is now an adult and has started to practice Koehler’s methods. His dogs are the best trained dogs I know of, even better than mine. I strongly suggest you obtain a copy of Koehler’s book.
Cool, I will look into that thanks for the info!