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Crimea
A Black Sea peninsula held by Russia and claimed by Ukraine
Crimea hangs from the southern edge of Ukraine into the Black Sea, a diamond-shaped peninsula joined to the mainland by the narrow Isthmus of Perekop and, since 2018, linked to Russia by a road and rail bridge across the Kerch Strait. Russia has controlled it since 2014 and governs it as two federal subjects, the Republic of Crimea and the city of Sevastopol. Ukraine regards it as the Autonomous Republic of Crimea and the city of Sevastopol under temporary occupation, and most of the world shares that view: a 2014 UN General Assembly resolution affirmed Ukraine's territorial integrity, and only a handful of states recognize Russian sovereignty. For both governments, the peninsula carries strategic and symbolic weight far beyond its size.
Most of Crimea's 27,000 square kilometers is flat, dry steppe given over to grain and pasture, but the south coast is different. There the Crimean Mountains rise abruptly from the sea to 1,545 meters at Roman-Kosh, sheltering a strip of Mediterranean-style climate where vineyards, old palaces, and resort towns such as Yalta crowd the shore. Simferopol is the administrative center, and Sevastopol, on a deep natural harbor at the southwestern tip, hosts the main base of Russia's Black Sea Fleet. About 2.4 million people live on the peninsula, according to Russian figures, most of them Russian speakers, alongside Ukrainian and Crimean Tatar communities. Since 2014 the Russian ruble has been the currency in use, and fresh water, long drawn from the Dnipro River by canal, remains a constraint.
Crimea was the seat of the Crimean Khanate until the Russian Empire annexed it in 1783. Soviet authorities deported the Crimean Tatars in 1944, and in 1954 the peninsula was transferred from the Russian republic to the Ukrainian one, an internal change that became an international border when the Soviet Union dissolved in 1991. In early 2014, after Ukraine's president fled Kyiv, Russian forces took control, and a referendum that Ukraine and most Western governments reject as illegitimate preceded Russia's formal annexation, which Moscow calls a reunification. Since the full-scale war began in 2022, Crimea has served as a Russian staging area and a target of Ukrainian strikes. In the peace talks of 2025 and 2026, Russia has sought recognition of its sovereignty, Ukraine has refused to give up its claim, and no settlement has been reached.