Battle off Ulsan
Overview
 
The naval Battle off Ulsan (Japanese: 蔚山沖海戦 Urusan'oki kaisen; Russian: Бой в Корейском проливе, Boi v Koreiskom prolive), also known as the Battle of the Japanese Sea or Battle of the Korean Strait, took place on 14 August 1904 during the Russo-Japanese War
Russo-Japanese War
The Russo-Japanese War was "the first great war of the 20th century." It grew out of rival imperial ambitions of the Russian Empire and Japanese Empire over Manchuria and Korea...

, four days after the Battle of the Yellow Sea
Battle of the Yellow Sea
The Battle of the Yellow Sea was a major naval engagement of the Russo-Japanese War, fought on 10 August 1904. In the Russian Navy, it was referred to as the Battle of 10 August. The battle foiled an attempt by the Russian fleet at Port Arthur to break out and form up with counterparts from...

.
The Vladivostok
Vladivostok
The city is located in the southern extremity of Muravyov-Amursky Peninsula, which is about 30 km long and approximately 12 km wide.The highest point is Mount Kholodilnik, the height of which is 257 m...

 Cruiser Unit of the Russian
Imperial Russian Navy
The Imperial Russian Navy refers to the Tsarist fleets prior to the February Revolution.-First Romanovs:Under Tsar Mikhail Feodorovich, construction of the first three-masted ship, actually built within Russia, was completed in 1636. It was built in Balakhna by Danish shipbuilders from Holstein...

 fleet made up of the armoured cruisers Rossia
Rossia (1896)
Rossia was an armored cruiser of the Imperial Russian Navy built in the 1890s. She was designed as a long-range commerce raider and served as such during the Russo-Japanese War of 1904–05...

, Gromoboi
Gromoboi (1899)
Gromoboi was an armoured cruiser of the Imperial Russian Navy built in the late 1890s. She was designed as a long-range commerce raider and served as such during the Russo-Japanese War of 1904–05...

and Rurik
Rurik (1892)
The Rurik was an armoured cruiser built for the Imperial Russian Navy in 1895. She was named in honour of Rurik, the semi-legendary founder of ancient Russia...

raided against Japanese sea commerce in the first stage of the war.

News that the First Pacific Squadron from Port Arthur
Lüshunkou
Lüshunkou is a district in the municipality of Dalian, Liaoning province, China. Also called Lüshun City or Lüshun Port, it was formerly known as both Port Arthur and Ryojun....

 had sailed reached Vladivostok
Vladivostok
The city is located in the southern extremity of Muravyov-Amursky Peninsula, which is about 30 km long and approximately 12 km wide.The highest point is Mount Kholodilnik, the height of which is 257 m...

 in the afternoon of 11 August 1904.
 
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