They are complementary. My friend has a mutt, a mix of some kind of blood hound/shepard/pit bull. The dog has a kind of sixth sense.
The dog seems to know when people just think about approaching his property.
We had an Irish Setter that was wonderful. She loved the kids and was fiercely protective of the family. One night my oldest son, ten at the time stepped out on the front porch and she nearly knocked him down putting herself between him and a 500lbs. black bear that walked out of the woods into the front yard. She went nose to nose and stood her ground ten feet away until we got my son inside and I fired a shotgun into the ground, then she broke for the house and we kenneled her and the bear turned slowly and walked off. She had a bark for animals, one for friends and one was you need to step out here now and check this out. She passed in 2019 suddenly after 12 years.
We have two male German shepherds that are brothers and they are about worthless as guard dogs, although their appearance may intimidate some would be goblins. I think they would fight if my wife was in danger as she is their momma and they love her.
When the cops take 45 minutes to respond to your place a firearm, many firearms are a necessity and they will not be given up.