What is "shoeburyness"

Shoeburyness (also called "Shoebury") is a town in southeast Essex, England, at the mouth of the Thames Estuary. It is within the borough of Southend-on-Sea, situated at its far east, around east of Southend town centre. It was an urban district of Essex from 1894 to 1933, when it became part of the county borough of Southend-on-Sea. It was once a garrison town and still acts as host to MoD Shoeburyness.