How to protect against burglary

I have non working horn,lights & empty camera enclosures on my front & rear porch areas. Plus a Belgian Shepherd. No one comes on property unless invited. The camera enclosures will soon have cameras in them.

I mounted a horn & a red & blue light on the front of my house that no one can miss seeing. I am thinking of adding a camera enclosure also. I do have a large dog who hangs around the front steps of the house most of the time.