The 15 cm SK L/45 was a German naval gun used in World War I and World War II.

SMS Bremse was a Brummer-class minelaying light cruiser of the Imperial German Navy. She was laid down by AG Vulcan Stettin on 27 April 1915 and launched on 11 March 1916 at Stettin, Germany, the second of the two-ship class after her sister, SMS Brummer. She served during the First World War, operating most of the time in company with her sister. The two ships took part in an ambush on a convoy in the North Sea, where they sank two destroyers in a surprise attack, before hunting down and sinking nine merchantmen, after which they returned to port unscathed.