Trångsund Fortress (russian: Крепость Тронгзунд, fi, Uuraan linnoitus) is a naval fort by the

Vyborg Bay Vyborg Bay (, , ) is a deep inlet running northeastward near the eastern end of Gulf of Finland in the Baltic Sea. The city of Vyborg is located near the head of the gulf. The Monrepos Park Mon Repos or Monrepos (russian: Монреп� ...

in the town of

Vysotsk Vysotsk (russian: Высо́цк; fi, Uuras; sv, Trångsund) is a coastal town and a seaport in Vyborgsky District of Leningrad Oblast, Russia, located on the Karelian Isthmus, on the eastern shore of the Vyborg Bay, southwest of Vyborg and no ...

Leningrad Oblast Leningrad Oblast ( rus, Ленинградская область, Leningradskaya oblast’, lʲɪnʲɪnˈgratskəjə ˈobləsʲtʲ, , ) is a federal subject of Russia (an oblast). It was established on 1 August 1927, although it was not until 1 ...

Russia Russia (, , ), or the Russian Federation, is a transcontinental country spanning Eastern Europe and Northern Asia. It is the largest country in the world, with its internationally recognised territory covering , and encompassing one-eigh ...

. It was established by

Peter the Great Peter I ( – ), most commonly known as Peter the Great,) or Pyotr Alekséyevich ( rus, Пётр Алексе́евич, p=ˈpʲɵtr ɐlʲɪˈksʲejɪvʲɪtɕ, , group=pron was a Russian monarch who ruled the Tsardom of Russia from t ...

in 1710 to secure the town of

Vyborg Vyborg (; rus, Вы́борг, links=1, r=Výborg, p=ˈvɨbərk; fi, Viipuri ; sv, Viborg ; german: Wiborg ) is a town in, and the administrative center of, Vyborgsky District in Leningrad Oblast, Russia. It lies on the Karelian Isthmus n ...

which was captured from Sweden during the

Great Northern War The Great Northern War (1700–1721) was a conflict in which a coalition led by the Tsardom of Russia successfully contested the supremacy of the Swedish Empire in Northern, Central and Eastern Europe. The initial leaders of the anti-Swed ...

. The fort is located about 12 kilometres south of Vyborg in the islands of Vysotsky and Maly Vysotsky. Trångsund Fortress received its present form after the

Crimean War The Crimean War, , was fought from October 1853 to February 1856 between Russia and an ultimately victorious alliance of the Ottoman Empire, France, the United Kingdom and Piedmont-Sardinia. Geopolitical causes of the war included t ...

in the 1860s. The structures dating back to the early 18th Century are no longer visible. In the early 1900s, the fort was intended to be a part of the

Peter the Great's Naval Fortress Peter the Great's Naval Fortress or the Tallinn-Porkkala defence station was a Russian fortification line, which aimed to block access to the Russian capital Saint Petersburg via the sea. The plans for the fortress included heavy coastal artiller ...

but it was disarmed by the

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...

. During the 1918

Finnish Civil War The Finnish Civil War; . Other designations: Brethren War, Citizen War, Class War, Freedom War, Red Rebellion and Revolution, . According to 1,005 interviews done by the newspaper '' Aamulehti'', the most popular names were as follows: Civil ...

the Trångsund Fortress was occupied by the local Women's Red Guard.

References

{{coord, 60.635195, N, 28.573337, E, scale:80000_region:RU, display=title Forts in Russia History of the Karelian Isthmus 1710 establishments in Russia Cultural heritage monuments in Leningrad Oblast