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) .
U-50-class submarine The "U-50" class was a class of four ocean-going submarines or U-boats planned for the Austro-Hungarian Navy (German: "Kaiserliche und Königliche Kriegsmarine "or" K.u.K. Kriegsmarine" ) during World War I. The design of the boats was based on the Project 835 design purchased from the German firm of Germaniawerft in July 1915. The Navy authorized Ganz Danubius to begin construction of the submarines in Fiume in February 1916. Only two of the planned four boats were laid down, but neither were ever launched or completed. The two incomplete submarines were scrapped after the war ended.