The naval Battle of Jasmund took place between elements of the Danish and Prussian navies on 17 March 1864 during the Second Schleswig War. The action took place east of the Jasmund peninsula on the Prussian island of Rügen, during a Prussian attempt to weaken the Danish blockade in the Baltic Sea. The Prussian squadron, commanded by Eduard von Jachmann, sortied with a screw frigate, a screw corvette, a paddle steamer, and six gunboats to attack the Danish squadron blockading the eastern Prussian coast. The Danish force was commanded by Edvard van Dockum, and it consisted of one screw frigate, one ship of the line, and two steam corvettes. In an action lasting two hours, the superior Danish squadron forced the Prussians to withdraw, with both sides suffering damage and light casualties. The Danish victory was compounded by the arrival of further warships after the battle, which cemented the blockade. The outcome of the battle, and the naval war in the Baltic as a whole, was irrelevant to the outcome of the war, however, as the Prussian and Austrian armies decisively defeated the Danes on land, forcing them to surrender.
Wilhelm von Tegetthoff was an Austrian admiral. He commanded the fleet of the North Sea during the Second Schleswig War of 1864, and the Austro-Prussian War of 1866. He is often considered by some Austrian historians to be one of the most adept naval officers of the 19th-century, due to his tactical inventiveness, sense of command, and inspirational leadership.
Jylland is a danish frigate, and is both a screw-propelled steam frigate and a sailship. It took part in the Battle of Heligoland on 9 May 1864, and is preserved as a museum ship in the small town of Ebeltoft, located on the Djursland peninsula in Denmark.
SMS Arminius was an ironclad warship of the Prussian Navy, later the Imperial German Navy. The vessel was a turret ship that was designed by the British Royal Navy Captain Cowper Coles and built by the Samuda Brothers shipyard in Cubitt Town, London as a speculative effort; Prussia purchased the ship during the Second Schleswig War against Denmark, though the vessel was not delivered until after the war. The ship was armed with four 21 cm (8.3 in) guns in a pair of revolving gun turrets amidships. She was named for Arminius, the victor of the Battle of the Teutoburg Forest.
Reinhold von Werner was a Prussian and later Imperial German naval officer in the 19th century, eventually reaching the rank of vice admiral. He commanded warships during the three wars of German Unification, the Second Schleswig War, the Austro-Prussian War, and the Franco-Prussian War in 1864, 1866, and 1870–1871, respectively, and during a naval intervention during a revolution in Spain in 1873. His actions off Spain, considered extreme by Chancellor Otto von Bismarck, resulted in his court-martial. He was promoted two years after the intervention in Spain, but was forced into retirement after a major feud with Albrecht von Stosch three years later. Werner wrote numerous books during and after his naval career, and also founded a periodical on maritime topics. He was ennobled in 1901 and died in February 1909.
SMS Kaiser was a 92-gun wooden ship of the line of the Austrian Navy, the last vessel of the type, and the only screw-driven example, to be built by the Austrians. She was built by the naval shipyard in Pola; she was laid down in March 1855, was launched in October 1858, and was completed the following year. The ship took part in the Second Schleswig War of 1864, but saw no action during her deployment to the North Sea. Kaiser did see action during the Seven Weeks' War two years later, during which she took part in the Battle of Lissa as the flagship of Anton von Petz, commander of the Austrian 2nd Division. Kaiser engaged several Italian ironclads simultaneously, rammed one—Re di Portogallo—and damaged another—Affondatore—with gunfire. In doing so, she became the only wooden ship of the line to engage an ironclad warship in battle.
SMS Drache was the first of two Drache-class armored frigates built for the Austro-Hungarian Navy in the 1860s, the other being Salamander. Drache was laid down in February 1861, launched in September, and completed in November 1862. She remained in the Adriatic during the Second Schleswig War in 1864 while other ships were sent to attack Denmark. Two years later, Prussia and Italy attacked Austria in the Seven Weeks' War. The ship participated in the Austrian victory over the Italians in the Battle of Lissa, where she inflicted serious damage on the coastal defense ship Palestro, setting her on fire and ultimately destroying her. Drache was modernized immediately after the war, but saw little use thereafter. Badly rotted by 1875, she was stricken from the Navy List that year and eventually broken up in 1883.
SMS Salamander was a Drache-class armored frigate built for the Austro-Hungarian Navy in the 1860s; she was laid down in February 1861, launched in August that year, and completed in May 1862, six months before her sister Drache. She was a broadside ironclad, mounting a battery of twenty-eight guns in gun ports along the length the hull. During the Second Schleswig War in 1864, Salamander remained in the Adriatic to protect Austria from a possible Danish attack that did not materialize. Two years later, during the Seven Weeks' War, she participated in the Austrian victory over a superior Italian fleet in the Battle of Lissa in July 1866. Immediately after the war, she was modernized with a battery of more powerful guns. Little used thereafter owing to reduced naval budgets, she was stricken from the Navy List in 1883 and hulked for use as a mine storage ship before being broken up in 1895–1896.
SMS Prinz Eugen was the second member of the Kaiser Max class built for the Austrian Navy in the 1860s. Her keel was laid in October 1861 at the Stabilimento Tecnico Triestino shipyard; she was launched in June 1862, and was completed in March 1863. She carried her main battery—composed of sixteen 48-pounder guns and fifteen 24-pounders—in a traditional broadside arrangement, protected by an armored belt that was 110 mm (4.3 in) thick.
SMS Don Juan d'Austria was the third member of the Kaiser Max class built for the Austrian Navy in the 1860s. Her keel was laid in October 1861 at the Stabilimento Tecnico Triestino shipyard; she was launched in July 1862, and was completed in 1863. She carried her main battery—composed of sixteen 48-pounder guns and fifteen 24-pounders—in a traditional broadside arrangement, protected by an armored belt that was 110 mm (4.3 in) thick.
SMS Blitz was a Camäleon-class gunboat of the Prussian Navy that was launched in 1862. A small vessel, armed with only three light guns, Blitz served during all three wars of German unification in the 1860s and early 1870s. The ship was present during the Battle of Heligoland in May 1864 during the Second Schleswig War, but was too slow to engage the Danish squadron. During the Austro-Prussian War of 1866, she operated against the Kingdom of Hanover in the North Sea, but did not see extensive action. In August 1870, Blitz and three other light vessels attacked the French blockade force in the Baltic Sea during the Franco-Prussian War, but they withdrew without either side scoring any hits. During her peacetime career, Blitz was sent to the Mediterranean Sea twice, in 1863 and 1867–1868. She was employed as a fisheries protection ship, a guard ship, and a survey vessel in the early 1870s, before being decommissioned in 1875 and broken up for scrap in 1878. Parts of her machinery were reused in the gunboat Wolf.
SMS Basilisk was a Camäleon-class gunboat of the Prussian Navy that was launched in 1862. A small vessel, armed with only three light guns, Basilisk served during all three wars of German unification in the 1860s and early 1870s. The ship was present during the Battle of Heligoland in May 1864 during the Second Schleswig War, but was too slow to engage the Danish squadron. During the Austro-Prussian War of 1866 and the Franco-Prussian War of 1870–1871, Basilisk was stationed in the North Sea to help defend the coast, but she did not see action during either conflict. Between 1873 and 1875, she was employed experimentally as the first torpedo-armed warship of the German fleet. Basilisk was decommissioned in 1875, renamed "Mine Barge No. 1", and converted into a naval mine storage hulk. The details of her fate are unrecorded, but she was still in service in that capacity at least as late as 1900. Sometime thereafter, she was broken up.
The Camäleon class was a group of gunboats built for the Prussian Navy. Eight ships comprised the class: Camäleon, Comet, Cyclop, Delphin, Blitz, Basilisk, Meteor, and Drache. The vessels were armed with a battery of one 15 cm (5.9 in) gun and two 12 cm (4.7 in) guns. In 1865, the ships then in service had their 15 cm gun replaced with a 21 cm (8.3 in) gun; Meteor and Drache, not yet completed, entered service with that gun. The vessels saw action during the wars of German unification, with Comet taking part in the Battle of Jasmund and Blitz and Basilisk present during the Battle of Heligoland, both during the Second Schleswig War in 1864. Several of the ships served in the North Sea during the Austro-Prussian War, where some of them supported operations against the Kingdom of Hanover. During the Franco-Prussian War, Meteor battled the French aviso Bouvet in the Battle of Havana in 1870; the other members of the class were deployed on coastal defense assignments.
SMS Nymphe was the lead ship of the Nymphe class of steam corvettes, the first ship of that type to be built for the Prussian Navy. She had one sister ship, Medusa, and the vessels were wooden-hulled ships armed with a battery of sixteen guns. She was ordered as part of a naval expansion program to counter the Danish Navy over the disputed ownership of Schleswig and Holstein. Nymphe was laid down in January 1862, was launched in April 1863, and was completed in October that year.
SMS Radetzky was a screw frigate in the Austro-Hungarian Navy, built in England in 1856 and lost through explosion of the powder magazine in 1869.
SMS Preussischer Adler was a paddle steamer originally built in the mid-1840s for use on a packet route between the Kingdom of Prussia and the Russian Empire in the Baltic Sea. She was requisitioned by the Prussian Navy during the First Schleswig War in 1848 and converted into an aviso, the first vessel of the type commissioned by Prussia. During the war, she took part in an inconclusive action with the Danish brig St. Croix, the first naval battle of the Prussian fleet. After the war, she was disarmed and returned to her commercial role, operating uneventfully on the Stettin–St. Petersburg route until 1862, when the expansion of the Prussian Eastern Railway had rendered the maritime route superfluous. The ship was purchased by the Prussian Navy that year and rearmed, once again as an aviso.
Edouard Suenson was a Danish vice admiral known for his participation in the First and Second Schleswig War, and served as the main Danish commander at the Battle of Heligoland in the latter.
Denmark 
Austrian Empire 
Kingdom of Prussia 
Edouard Suenson 
