When was the navy that was donated the LKL "Kursis" (M51) by Germany established?
Lithuanian Naval Force The Lithuanian Navy is the naval arm of the Lithuanian Armed Forces. Though formally established on 1 August 1935 its roots stretch back as far as naval engagements on the Baltic Sea in the Medieval period. Lithuanian naval units saw some service with Soviet naval forces during World War II, and the navy has been re-established in its own right and continues to expand since Lithuania's independence in 1990.
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.