Syvash in the context of "2022 Russian invasion of Ukraine"

Crimea (/kraɪˈmiːə/ kry-MEE-ə) is a peninsula in Eastern Europe, on the northern coast of the Black Sea, almost entirely surrounded by the Black Sea and the smaller Sea of Azov. The Isthmus of Perekop connects the peninsula to Kherson Oblast in mainland Ukraine. To the east, the Crimean Bridge, constructed in 2018, spans the Strait of Kerch, linking the peninsula with Krasnodar Krai in Russia. The Arabat Spit, located to the northeast, is a narrow strip of land that separates the Syvash lagoons from the Sea of Azov. Across the Black Sea to the west lies Romania and to the south is Turkey. The population is 2.4 million, and the largest city is Sevastopol. The region, internationally recognised as part of Ukraine, has been under Russian occupation since 2014.

Called the Tauric Peninsula until the early modern period, Crimea has historically been at the boundary between the classical world and the steppe. Greeks colonised its southern fringe and were absorbed by the Roman and Byzantine Empires and successor states while remaining culturally Greek. Some cities became trading colonies of Genoa, until conquered by the Ottoman Empire. Throughout this time the interior was occupied by a changing cast of steppe nomads, coming under the control of the Golden Horde in the 13th century from which the Crimean Khanate emerged as a successor state. In the 15th century, the Khanate became a dependency of the Ottoman Empire. Lands controlled by Russia and Poland-Lithuania were often the target of slave raids during this period. In 1783, after the Russo-Turkish War (1768–1774), the Russian Empire annexed Crimea. Crimea's strategic position led to the 1854 Crimean War and many short lived regimes following the 1917 Russian Revolution. When the Bolsheviks secured Crimea, it became an autonomous soviet republic within the Russian Soviet Federative Socialist Republic. It was occupied by Germany during World War II. When the Soviets retook it in 1944, Crimean Tatars were ethnically cleansed and deported under the orders of Joseph Stalin, in what has been described as a cultural genocide. Crimea was downgraded to an oblast in 1945. In 1954, the USSR transferred the oblast to the Ukrainian Soviet Socialist Republic on the 300th anniversary of the Pereyaslav Treaty in 1654.

The Isthmus of Perekop, literally Isthmus of the Trench (Ukrainian: Перекопський перешийок; transliteration: Perekops'kyi pereshyiok; Russian: Перекопский перешеек; transliteration: Perekopskiy peresheek, Crimean Tatar: Or boynu, Turkish: Orkapı; Greek: Τάφρος; transliteration: Taphros), is the narrow, 5–7 kilometres (3.1–4.3 mi) wide strip of land that connects the Crimean Peninsula to the mainland of Ukraine. The isthmus projects between the Black Sea to the west and the Syvash to the east. The isthmus takes its name of "Perekop" from the Tatar fortress of Or Qapi.

The border between Ukraine's Autonomous Republic of Crimea and Kherson Oblast runs through the northern part of the isthmus. Since the start of the Russian military occupation and subsequent annexation of Crimea in 2014, this is also the de facto northern border of the Russian Republic of Crimea. The cities of Perekop, Armiansk, Suvorove (Crimea) [uk] and Krasnoperekopsk are situated on the isthmus. The North Crimean Canal ran through the isthmus, supplying Crimea with fresh water from the Dnieper River. Ukraine closed the canal in 2014, and the water supply was only partially replaced by other local and Russian sources.

The Arabat Spit (Ukrainian: Арабатська коса; Russian: Арабатская коса; Crimean Tatar: Arabat beli), or Arabat Arrow (Russian: Арабатская стрелка), is a barrier spit that separates the large, shallow, salty Syvash lagoons from the Sea of Azov. The spit runs between the Henichesk Strait in the north and the north-eastern shores of Crimea in the south. It is the largest of several spits of the Sea of Azov.

46°9′36.97″N 34°47′33.72″E / 46.1602694°N 34.7927000°E / 46.1602694; 34.7927000

The Henichesk Strait (alternatively Genichesk Strait; Ukrainian: Генічеська протока, Crimean Tatar: Ceniske, Cengięke, Russian: Генический пролив,) is a narrow strait which connects the Syvash (the shallow lagoon system separating the Crimea from the rest of Ukraine east of the Isthmus of Perekop) with the Sea of Azov. It separates the Arabat Spit from the Ukrainian mainland.