Prior to the Defence Act, there were four coastal artillery regiments, Vaxholm Coastal Artillery Regiment and the 1st Coastal Artillery Brigade (KA 1) in Vaxholm, Karlskrona Coastal Artillery Regiment and the 2nd Coastal Artillery Brigade (KA 2) in Karlskrona, Gotland Coastal Artillery Regiment (KA 3) on Gotland and Älvsborg Coastal Artillery Regiment (KA 4) in Gothenburg.