Sulina is a town and free port in Tulcea County, Northern Dobruja, Romania, at the mouth of the Sulina branch of the Danube. It is the easternmost point of Romania.
The Romanian Naval Forces is the principal naval branch of the Romanian Armed Forces and operates in the Black Sea and on the Danube. It traces its history back to 1860.
Naval warfare in World War I was mainly characterised by blockade. The Allied Powers, with their larger fleets and surrounding position, largely succeeded in their blockade of Germany and the other Central Powers, whilst the efforts of the Central Powers to break that blockade, or to establish an effective counter blockade with submarines and commerce raiders, were eventually unsuccessful. Major fleet actions were extremely rare and proved less decisive.
SM UB-42 was a Type UB II submarine or U-boat for the German Imperial Navy during World War I. UB-42 operated in the Mediterranean and the Black Seas during the war. She was broken up at Malta in 1920.
SM UC-15 was a German Type UC I minelayer submarine or U-boat in the German Imperial Navy during World War I. The U-boat was ordered on 23 November 1914, laid down on 28 January 1915, and was launched on 19 May 1915. It was commissioned into the German Imperial Navy on 28 June 1915 as SM UC-15. Mines laid by UC-15 during its eight patrols are credited with sinking 3 ships. UC-15 disappeared in November 1916.
The U-boat campaign from 1914 to 1918 was the World War I naval campaign fought by German U-boats against the trade routes of the Allies. It took place largely in the seas around the British Isles and in the Mediterranean. The German Empire relied on imports for food and domestic food production and the United Kingdom relied heavily on imports to feed its population, and both required raw materials to supply their war industry; the powers aimed, therefore, to blockade one another. The British had the Royal Navy which was superior in numbers and could operate on most of the world's oceans because of the British Empire, whereas the Imperial German Navy surface fleet was mainly restricted to the German Bight, and used commerce raiders and submarine warfare to operate elsewhere.
NMS Elisabeta was a small protected cruiser built for the Romanian Navy during the 1880s by Armstrong in Britain as Romania lacked the ability to build the ship itself. Serving mainly as a training ship, she represented Romania at the opening of the Kiel Canal in 1895. She helped protect Romanian interests in Constantinople during the First Balkan War in 1912–1913, but played no significant part in the Second Balkan War and was partially disarmed during World War I. Employed as a barracks ship after the war, the ship was scrapped in 1926.
Beograd was the lead ship of her class of destroyers, built for the Royal Yugoslav Navy in France during the late 1930s, and designed to be deployed as part of a division led by the flotilla leader Dubrovnik. She entered service in April 1939, was armed with a main battery of four 120 mm (4.7 in) guns in single mounts, and had a top speed of 35 knots.
NMS Amiral Murgescu was a minelayer and convoy escort of the Romanian Navy, the first sea-going warship built in Romania and the largest Romanian-built warship of World War II. She laid numerous minefields, from the Bulgarian port of Burgas to the Crimean port of Sevastopol, which inflicted significant losses to the Soviet Black Sea Fleet. She also carried out numerous convoy escort missions and took part in the Axis evacuation of the Crimea in May 1944. Due to her success in combat, she was decorated twice by May 1944. She was captured by the Soviet Union in September 1944 and served until 1988, when she was scrapped.
Submarine warfare in the Black Sea in World War II during 1941 primarily involved engagements between submarines of the Soviet Black Sea Fleet attacking Axis merchantmen defended by Romanian and Bulgarian warships. These engagements were a part of the naval Black Sea campaigns between Axis and Soviet naval forces.
NMS Grivița was a gunboat of the Romanian Navy, built in 1880. It was the first warship acquired by the Kingdom of Romania after gaining independence in 1878 and the first military ship of the Romanian Black Sea Fleet. Throughout her career, she saw service on both the Black Sea and the Danube during the Second Balkan War and the First World War.
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 Mihail Kogălniceanu was a Brătianu-class river monitor of the Romanian Navy. She saw service in both world wars, being the most successful vessel in her class of four ships. Like her three sisters, she was initially built as a river monitor, but in early 1918, she was converted to a sea-going monitor. During the Second Balkan War, she supported the Romanian crossing of the Danube into Bulgaria. During World War I, she carried out numerous bombardments against the Central Powers forces advancing along the shore of the Danube and carried out the last action of the Romanian Navy before the 11 November 1918 armistice. She later fought successfully against Bolshevik naval forces during the early months of the Russian Civil War, helping secure the Budjak region. During the interwar period, she contributed to the suppression of the Tatarbunary Uprising and was rearmed with longer main guns towards the end of the 1930s. During World War II, she fought several engagements against the Soviet Navy in the first month of the Eastern Front, but was ultimately sunk by Soviet aircraft shortly after Romania ceased hostilities against the Soviet Union, on 24 August 1944.
NMS Trotușul was a small torpedo boat of the Romanian Navy. Along with her three sister ships, she saw service during World War I and World War II, being the most successful vessel in her class.
NMS Mărășești was one of four Vifor-class destroyers ordered by Romania shortly before the beginning of the First World War from Italy. All four sister ships were requisitioned when Italy joined the war in 1915. Originally named Vârtej by the Romanians, she was renamed Nibbio in Italian service. Not completed until mid-1918, the ship engaged Austro-Hungarian ships in the Adriatic Sea only once before the war ended in November. She was renamed Mărășești when she was re-purchased by the Romanians in 1920.
During the Second World War, the Royal Romanian Navy operated a total of 9 submarines: three fleet submarines and six midget submarines. These vessels fought on the Axis side during the war. Only two of them survived the war and continued to serve in the Romanian Navy until the 1960s.
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.
NMS Năluca was a torpedo boat of the Royal Romanian Navy. She was commissioned in 1920, after initially serving as Tb 82 F in the Austro-Hungarian Navy during World War I. She and six more sister ships were awarded to Romania as reparations after the war ended.
The Romanian Danube Flotilla is the oldest extant naval force on the Danube, dating since 1860, when the Romanian Navy was founded. It saw service during most of the wars involving Romania, and was the most powerful river naval force in the world during the Interwar period.
During World War I, the Black Sea Fleet of the Romanian Navy fought against the Central Powers forces of the German Empire, the Ottoman Empire and Austria-Hungary. The Romanian warships succeeded in defending the coast of the Danube Delta, corresponding to an area around the port of Sulina, while also aiding in the Delta's defense from inland Central Powers forces.
Romania