If a mainland UK city were attacked by any threat, would I expect to hear an air-raid sirens at any point?

Question

For example, if I were in Liverpool, and a direct threat (nuclear or otherwise) were known to be imminent, would I hear an air-raid siren?

For example, if I were in Liverpool, and a direct threat (nuclear or otherwise) were known to be imminent, would I hear an air-raid siren? Do they even exist in UK cities?

Answer 1

You wont hear whats not there!!!!