During 1915-1916 the Kaiser Friedrich III-class and the Wittelsbach-class battleships were decommissioned and disarmed. The 24 cm SK L/40 guns salvaged from these ships were also converted to coastal artillery. Eight guns in four turrets from the "Kaiser Friedrich III-class" were emplaced at Libau. Four guns were emplaced at Battery "Hamburg" on Norderney. Lastly four guns were emplaced at Battery "S2" on Sylt. During World War II Battery "Hamburg" at Norderney was still in action and was moved to Cherbourg, where it saw action against Allied naval forces during the Bombardment of Cherbourg.