"Grille", the last aviso built in Germany, was ordered as a state yacht for dictator Adolf Hitler and other elements of the Nazi regime. She was fitted with experimental high-pressure steam turbines to evaluate them for future warships. The ship was used in a variety of roles during her career with the "Kriegsmarine" (War Navy); in the late 1930s, in addition to her duties as a yacht, she was employed as a training ship and a target for torpedo training. After the start of World War II, she was used as an auxiliary minelayer, and was briefly assigned to participate in Operation Sea Lion in that capacity before it was cancelled in September 1940. She was also used to lay minefields during the German invasion of the Soviet Union—Operation Barbarossa—in mid-1941. She was then used as a training ship until March 1942, when she was reduced to a headquarters ship for naval forces in Norway. She filled that role until the end of the war in May 1945, when she was seized by British forces. "Grille" was then sold to a Lebanese businessman, and, after arriving in Beirut, was attacked by Jewish commandos in 1947 because they incorrectly suspected that it would be used against Jewish forces during the ongoing civil war in Palestine. "Grille" was ultimately sold to ship-breakers in the United States and dismantled in 1951.