When was the navy that was donated the LKL "Kursis" (M51) by Germany established?
LKL Kuršis (M51) LKL "Kursis" (M51) is a minehunter of the Lithuanian Naval Force. Built in West Germany in 1958 as "Marburg" (M1080), a "Lindau"-class (or Type 320) minesweeper for the German Navy, she was upgraded to a Type 331 minehunter in the 1970s. Germany donated "Marburg" in 2001 to the Lithuanian Naval Force, which renamed the ship "Kursis". The vessel augmented the Squadron of Mine-hunters, which had been established in 1999 with the similar donation of sister ship "Koblenz", which became "Sūduvis" (M52) .
SM U-117 SM "U-117" was a Type UE II long-range minelayer submarine of the Imperial German Navy. She was laid down in 1917, at Hamburg, Germany, by Aktiengesellschaft Vulcan and launched on 10 December 1917. She was commissioned in the Imperial German Navy on 28 March 1918, with "Kapitänleutnant" Otto Dröscher in command. After shakedown, "U-117" was posted to the "U-Kreuzer Verband" (submarine cruiser unit) on 1 June 1918. Over the next five weeks, she completed fitting out at Kiel.