If you lived in Croydon you would feel quite in need of defense
I would call 999 and state to the police I felt I was in danger. They would respond with emergency to protect me. I don't see a problem, that the Army needs to solve.
The police can't protect the property with the resources they have. What other options are there?
I would think differently If I heard of innocent householders being harmed.
People in harms way need to call the police and say get me out of here!