Visit To The Website risingsk9.com for more information on Guard Dogs. A Guard Dogs is usually trained to protect against unwanted or unforeseen visits from people or animals. A guard dog will restrain or attack an intruder if the intruder gets into the territory that the dog is guarding. A watch dog, on the other hand, would only give warning barks at an intruder coming within its range. Guard Dogs training may train a dog to do either of these two extremes and anywhere in between.