You need to contact your breeder. The Dutch Shepherd is a protective breed, but should not be down-right aggressive. Find an adult dog that corrects puppies. Allow the dog to correct the puppy for being aggressive. If that does not work, then you need to find a positive reinforcement trainer in your area and start going to classes a.s.a.p before this gets out of hand.
Answered by Anonymous - 7/10/2014 4:05:01 PM