Makiivka in the context of Heavy industry

Donetsk Oblast, also referred to as Donechchyna (Ukrainian: Донеччина, IPA: [doˈnɛtʃːɪnɐ]), is an oblast in eastern Ukraine. Before the 2022 Russian invasion of Ukraine, it was Ukraine's most populous province, with around 4.1 million residents. Its administrative center is Donetsk, though due to the ongoing Russo-Ukrainian War, the regional administration was moved to Kramatorsk. Historically, the region has been an important part of the Donbas region. From its creation in 1938 until November 1961, it bore the name Stalino Oblast, in honour of Joseph Stalin. As part of the de-Stalinization process, it was renamed after the Donets river, the main artery of Eastern Ukraine. Its population is estimated at 4,100,280 (2021 est.).

The oblast is known for its urban sprawl of Donetsk–Makiivka and Horlivka–Yenakiieve and it is often associated with the coal mining industry.

Donetsk (UK: /dɒnˈjɛtsk/ don-YETSK, US: /dən-/ dən-; Ukrainian: Донецьк [doˈnɛtsʲk] ; Russian: Донецк [dɐˈnʲetsk] ), 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.