I've been noticing lately that Nova is starting to get slightly worse in her protectiveness of "her" person. Basically if you are out anywhere with her (or at the house) and another animal or human comes close to myself, boyfriend, roommates, the pet sitter, back or front yard, she gets defensive and will bark/attempt to attack almost until whatever "threat" has moved out of the immediate area. Chances are she's already been allowed to do this for way to long as it is, but it's something I want to change. We are hoping to be able to foster dogs for the local rescue group that I'm highly involved in, but until Nova realizes that her persons do not need to be constantly protected I'm not sure how well that would work out. I know it's not safe for her to be on the defensive all the time, but I'm also not sure how I can show her that other people and animals around her humans and her house aren't a threat

First off, Is she a Sibe? (I know a lot of members have Mals).

Second, how old is she? This almost sounds like a fear period. There is a very big difference between protectiveness and fear aggression. I have worked with both.

She's a three year old Sibe/lab