Throughout the years from the city's foundation until Odderøya was closed in 1995, Kristiansand has been a significant garrison town in Norway. It is regrettable that a place has not yet been found in Kristiansand where it has been possible to show the importance the defense has had for the city's development.
When the Powder House at Søndre Batteri was completely restored in 2013, the Friends of Odderøya decided to use this space to tell more about Odderøya's history.