SMS Danzig

SMS Danzig was a paddle corvette of the Prussian Navy. She was the lead warship during the Battle of Tres Forcas in 1856, one of the first examples of Prussian gunboat diplomacy. She was later decommissioned from the Prussian Navy and served in the navy of the Japanese Tokugawa shogunate as the Kaiten (Japanese: 回天) from 1864 until 1869, and then briefly with the breakaway Ezo Republic until her destruction later the same year.