Achilles has always been an easy going, come what may GSD, but after turning 2, I started to see some behavioral changes. He start showing dominant behavior towards other males. It was the worst when Kaleb was brought home for a couple days. It seems like he constantly needed to show that he was the Alpha male. Passing other dogs on our outings has never been an issue, but now he tends to react, especially if they are reactive. He is not difficult to control, but I was wondering if having him neutered will lessen this behavior?