Donetsk
Donetsk (UK: / d ɒ n ˈ j ɛ t s k / don- YETSK, US: / d ə n -/ dən-; Ukrainian: Донецьк; Russian: Донецк), formerly known as Aleksandrovka, Yuzivka (or Hughesovka), Stalin, and Stalino, is an industrial city in eastern Ukraine located on the Kalmius River in Donetsk Oblast, which is currently occupied by Russia as the capital of the Donetsk People's Republic. The population was estimated at 901,645 (2022 estimate) in the city core, with over 2 million in the metropolitan area (2011). According to the 2001 census, Donetsk was the fifth-largest city in Ukraine.

Administratively, Donetsk has been the centre of Donetsk Oblast, while historically, it is the unofficial capital and largest city of the larger economic and cultural Donets Basin (Donbas) region. Donetsk is adjacent to another major city, Makiivka, and along with other surrounding cities forms a major urban sprawl and conurbation in the region. Donetsk has been a major economic, industrial and scientific centre of Ukraine with a high concentration of heavy industries and a skilled workforce. The density of heavy industries (predominantly steel production, chemical industry, and coal mining) determined the city's challenging ecological situation. In 2012, a UN report ranked Donetsk among the world's fastest depopulating cities.

The original settlement in the south of the European part of the Russian Empire was first mentioned as Aleksandrovka in 1779, during the reign of the Empress Catherine the Great. In 1869, the Welsh businessman John Hughes founded a steel plant and several coal mines in the region, and the town was named Hughesovka or Yuzovka (Юзовка) in recognition of his role ("Yuz" being a Russian-language approximation of Hughes). During Soviet times, the city's steel industry expanded. In 1924, Yuzovka was renamed Stalin. In 1929, Stalin was renamed Stalino, and in 1932, the city became the centre of the Donetsk region. Renamed Donetsk in 1961, the city today remains a centre for coal mining and for the steel industry.

Since April 2014, Donetsk and its surrounding areas have been one of the major sites of fighting in the ongoing Russo-Ukrainian War, as pro-Russian separatist forces battle against Ukrainian military forces for control of the city and surrounding areas. Throughout the war, the city of Donetsk has been administered by the pro-Russian separatist forces as the center of the Donetsk People's Republic (DPR), with outlying territories of the Donetsk region divided between the two sides. Donetsk International Airport became the epicenter of the war in 2014 with almost a year-long battle.

As of October 2022, Russia has full control of the city, with Ukrainian and Russian forces still in combat near the city.
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