Donbas
Historical coal-mining region on the Ukraine–Russia border.
Ліонкінг · CC BY-SA 4.0
The Donbas (also spelled Donbass) is a historical, cultural, and economic region on the Russia–Ukraine border, lying predominantly in Ukraine. As of October 2025, about 90% of the region is under Russian military control as a result of the ongoing Russo-Ukrainian war. According to the last census in 2001, the population of the Ukrainian portion of the Donbas was roughly 58% ethnic Ukrainian and 38% ethnic Russian. The region’s extent is defined in several ways: in modern geopolitics, it typically refers to Ukraine’s Donetsk and Luhansk oblasts; the Encyclopedia of History of Ukraine describes a “small Donbas” comprising northern Donetsk and southern Luhansk oblasts plus an adjacent part of Russia’s Rostov Oblast; the historical coal-mining area excluded parts of those two oblasts but included areas in Dnipropetrovsk Oblast and southern Russia; and the Euroregion of Donbas includes Donetsk, Luhansk, and Rostov oblasts. The name is a portmanteau of “Donets Basin,” referencing the Donets River and Donets Ridge. Donetsk, Ukraine’s fifth-largest city, is considered the unofficial capital; other major cities include Mariupol, Luhansk, Makiivka, Horlivka, Kramatorsk, Sloviansk, Alchevsk, Sievierodonetsk, and Lysychansk. The Donbas historically formed the border between the Zaporozhian Sich and the Don Cossack Host, and became a major coal mining and industrial zone from the late 19th century. In March 2014, following the Euromaidan protests and Revolution of Dignity, pro-Russian unrest escalated into a war between Ukrainian forces and Russian-backed separatists claiming Donetsk and Luhansk “People’s Republics.” The conflict split the region into Ukrainian-held (about two-thirds) and separatist-held (about one-third) territory until Russia’s full-scale invasion in 2022. On 30 September 2022, Russia unilaterally annexed the Donbas along with Kherson and Zaporizhzhia oblasts.
- Population (2001 census)
- About 58% ethnic Ukrainian, 38% ethnic Russian
- Major cities
- Donetsk (unofficial capital), Mariupol, Luhansk, Makiivka, Horlivka, Kramatorsk, Sloviansk, Alchevsk, Sievierodonetsk, Lysychansk
Lore & Background
The Donbas is a historical, cultural, and economic region straddling the Russia–Ukraine border, with the vast majority lying within Ukraine. Its name is a portmanteau of "Donets Basin," referring to the Donets River and the Donets Ridge. The region’s defining characteristic is its long-standing role as a major coal mining and industrial hub, a status it has held since the late 19th century. Geographically, it is situated in southeastern Ukraine, between the middle and lower Donets River and the Azov Upland and Lowland. The central area, known as "Old Donbas," corresponds to the Donets Ridge, where coal seams are exposed at the surface. Surrounding this core, "New Donbas" contains deeper coal deposits, extending westward to the city of Samar in Dnipropetrovsk Oblast, north toward Kharkiv, and east into Russia toward Volgograd, covering a total area of about 50,000 square kilometers. The landscape is a steppe upland, reaching 367 meters above sea level, with numerous valleys up to 100 meters deep. It supports a forest steppe ecosystem due to higher rainfall than surrounding areas. The region’s appearance has been heavily altered by human activity, including ancient burial mounds (kurgans) and modern industrial features such as factories, coal mines, slag heaps, power lines, railways, and canals. Most land outside cities is cultivated, with original forests largely replaced by artificial windbreaks and parks. The city of Donetsk is considered the unofficial capital, with other major cities including Mariupol, Luhansk, Makiivka, Horlivka, Kramatorsk, Sloviansk, Alchevsk, Sievierodonetsk, and Lysychansk.
Reader's Guide
The Donbas holds significance as a historically contested borderland and a major industrial and coal-mining hub that shaped the economy of Ukraine and the broader region. Its development from a sparsely populated Cossack frontier into a densely industrialized area—driven by foreign investment and migrant labor—illustrates the transformative impact of the Industrial Revolution in Eastern Europe. The region's ethnic composition, with a substantial Russian minority, and its history of shifting political control have made it a focal point of the Russo-Ukrainian war. The region's legacy is thus tied both to its industrial past and to its role as a flashpoint in contemporary European security.
Did You Know?
- The word 'Donbas' is a portmanteau of 'Donets Basin,' short for 'Donets Coal Basin.'
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