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) .
German submarine U-31 (1936) German submarine "U-31" was a Type VIIA U-boat of Nazi Germany's "Kriegsmarine" during World War II. She was laid down on 1 March 1936 as yard number 912, launched on 25 September and commissioned on 28 December 1936.