The Finnish Navy is one of the branches of the Finnish Defence Forces. The navy employs 2,300 people and about 4,300 conscripts are trained each year. Finnish Navy vessels are given the ship prefix "FNS", short for "Finnish Navy ship", but this is not used in Finnish-language contexts. The Finnish Navy also includes coastal forces and coastal artillery.
The Baltic Sea campaigns were conducted by Axis and Allied naval forces in the Baltic Sea, the Gulf of Bothnia, the Gulf of Finland and the connected lakes Ladoga and Onega on the Eastern Front of World War II. After early fighting between Polish and German forces, the main combatants were the Kriegsmarine and the Soviet Navy, with Finland supporting the Germans until 1944 and the Soviets thereafter. The Swedish Navy and merchant fleet played important roles, and the British Royal Navy planned Operation Catherine for control of the Baltic Sea and its exit choke point into the North Sea.
Saukko (Pu110) was a small submarine that served in the Finnish Navy during the Second World War. It was designed not to exceed 100 tonnes, as it was planned for use in Lake Ladoga, and according to the 1920 Treaty of Tartu, no nation was allowed to use naval ships of more than 100 tonnes on the lake. The submarine could be divided into separate sections and transported by rail. The conning tower could be lifted off entirely. The engines were in the aft section and the batteries in the forward section. The name "Saukko" means European otter.
Krasnoye Znamya was a Soviet gunboat. The ship had been built in the late 19th century as the Khrabryy by the Russian Empire. The ship was the only craft of its class. The Krasnoye Znamya was sunk in the harbour of Lavansaari in the Gulf of Finland on November 18, 1942, after an attack by Finnish MTBs.
VMV-class patrol boat was a series of Finnish patrol boats, which served with the Finnish Coast Guard and the Finnish Navy during World War II.
The Taisto-class motor torpedo boats or T class was a series of motor torpedo boats, which saw service with the Finnish Navy during World War II. Following the war, the Paris Peace Treaty of 1947 prohibited the Finnish Navy from employing torpedo-carrying vessels of any kind and the Taisto class were converted into motor gunboats. By 1964, all vessels of the class had been removed from service.
The Sisu-class motor torpedo boats was a series of two Italian MAS type motor torpedo boats of the Finnish Navy. The vessels were constructed in 1916 by the Orlando shipyard in Livorno, Italy. Sisu and Hurja were purchased by the Finns in 1920, and saw service in World War II. When dashing forward at full speed, the vessels sprayed water high in the air, earning the nickname "the fountains" from Finnish sailors.
The Syöksy-class motor torpedo boats was a series of four British Thornycroft type motor torpedo boats of the Finnish Navy. The vessels were constructed in 1928 by the John Thornycroft & Co. shipyard in Woolton, UK. The vessels saw service in World War II. The Thornycroft type released its torpedoes by dropping them from rails in the aft. The ship then had to steer away from the torpedoes path, a manoeuvre that could be quite tricky in the close waters of the Gulf of Finland.
The Battle of Someri took place in the Gulf of Finland during World War II on 8–9 July 1942, between the Soviet Union and Finland. Starting as a modest operation to clear a Finnish observation post from a small island, it became one of the largest surface ship engagements in the Baltic theater.
Riilahti was a Ruotsinsalmi class minelayer of the Finnish Navy. Riilahti was commissioned in 1940 and sunk in 1943. The vessel was named after the battle of Riilahti, which was fought between Sweden and Russia in 1714.
The Ruotsinsalmi-class minelayers were a two-strong class of minelayers in the Finnish Navy. The two ships, comprising Ruotsinsalmi and Riilahti, were constructed in Finland and saw service in the Winter War and World War II. Riihahti was sunk in an engagement with Soviet motor torpedo boats on 23 August 1943. Ruotsinsalmi survived the wars and remained in service in the post war Finnish Navy until being withdrawn in the 1970s.
The G-5 was a Soviet motor torpedo boat design built before and during World War II. Approximately 300 were built, of which 73 were lost during the war. Four were exported to the Spanish Republican Navy during the Spanish Civil War and others were transferred to North Korea after the war. Three were captured by the Finns, but only two were used before all three had to be returned to the Soviets after the Moscow Armistice in 1944.
Louhi was a Finnish Navy minelayer. The ship was originally constructed for the Imperial Russian Navy but was taken over by the Finns during the Russian Civil War. She had originally been named Voin, but was renamed as M1 in Finnish service. In 1936 she was given the more personal name Louhi, following the procedure of all other major ships in the Finnish navy.
The Battle of Nerva Island took place in the Gulf of Finland during World War II on 19–20 June 1944 between the Soviet Union and Germany, which occurred amid the 1944 Soviet offensive against Finland. It was one of the few engagements in the Baltic theater with large surface ships.
The Romanian Navy during World War II was the main Axis naval force in the Black Sea campaigns and fought against the Soviet Union's Black Sea Fleet from 1941 to 1944. Operations consisted mainly of mine warfare, but there were also escort missions and localized naval engagements. The largest naval action fought by the Romanian Navy was the 26 June 1941 Raid on Constanța, and its most extensive operation was the 1944 evacuation of the Crimea.
NMS Viscolul was the most successful and the longest-serving motor torpedo boat of the Romanian Navy during the Second World War. She supported the Siege of Odessa and took part in the action of 9 July 1941.
The Soviet submarine Baltic Sea campaign in 1943 was launched by the Soviet Navy to harass the strategic iron ore traffic from neutral Sweden to Nazi Germany on the Eastern Front during the WWII. Other operations were launched by Allies, especially by the Royal Navy. The offensive was a repetition of the previous campaign in 1942 but resulted in a failed outcome.
The Soviet naval Baltic Sea campaign in 1945 was launched by the Soviet Navy to harass enemy shipping and naval military assets of Nazi Germany on the Eastern Front during World War II. Both submarines and surface units of the Soviet Navy were employed. The campaign scored successes during Operation Hannibal.
The D-3-class, designated ProjectP-19, was a class of Soviet wooden motor torpedo boats (MTB) built before and during World War II. The D stands for Derevyanniy.
The German torpedo boat T31 was one of fifteen Type 39 torpedo boats built for the Kriegsmarine during World War II. Completed in early 1944, the boat was assigned to convoy escort duties and supporting German forces in the Baltic. She was sunk in combat with Soviet motor torpedo boats on 20 June off the Finnish coast on 20 June with 82 men killed.
