Russian-occupied territories of Ukraine in the context of "2022 protests in Russian-occupied Ukraine"

Southern Russia or the South of Russia (Russian: Юг России, IPA: [juk rɐˈsʲiɪ]) is a colloquial term for the southernmost geographic portion of European Russia. The term is generally used to refer to the region of Russia's Southern Federal District and North Caucasian Federal District.

The term is informal and does not conform to any official areas of the Russian Federation as designated by the Russian Classification on Objects of Administrative Division (OKATO).

The Sea of Azov is an inland shelf sea in Eastern Europe connected to the Black Sea by the narrow (about 4 km (2.5 mi)) Strait of Kerch, and sometimes regarded as a northern extension of the Black Sea. The sea is bounded by Russia on the east, and by Ukraine on the northwest and southwest (the parts of Ukraine bordering the sea are currently under Russian occupation). It is an important access route for Central Asia, from the Caspian Sea via the Volga–Don Canal.

The sea is largely affected by the inflow of the Don, Kuban, and other rivers, which bring sand, silt, and shells, which in turn form numerous bays, limans, and narrow spits. Because of these deposits, the sea bottom is relatively smooth and flat, with the depth gradually increasing toward the middle. Because of the river inflow, water in the sea has low salinity and a high amount of biomass (such as green algae) that affects the water colour. Abundant plankton result in unusually high fish productivity. The sea shores and spits are low; they are rich in vegetation and bird colonies. The Sea of Azov is the shallowest sea in the world, with the depth varying between 0.9 and 14 metres (3 and 46 ft). There is a constant outflow of water from the Sea of Azov to the Black Sea.

This is a list of cities and towns in Russia and parts of the Russian-occupied territories of Ukraine with a population of over 50,000 as of the 2021 Census. The figures are for the population within the limits of the city/town proper, not the urban area or metropolitan area.

The list includes Sevastopol and settlements within the Republic of Crimea which are internationally recognized as part of Ukraine and were not subject to the 2010 census. Additionally, settlements within the Donetsk People's Republic, Kherson Oblast, Luhansk People's Republic, and Zaporozhye Oblast, are internationally recognized as part of Ukraine and were not subject to the 2010 census. Only settlements presently controlled by Russia are included; settlements under the control of Ukraine are not included. The city of Zelenograd (a part of the federal city of Moscow) and the municipal cities/towns of the federal city of St. Petersburg are also excluded, as they are not enumerated in the 2021 census as stand-alone localities. The sixteen largest cities (cities with over 1,000,000 inhabitants) have a total population of 35,509,177, or roughly 24.1% of the country's total population.

The Russia–Ukraine border is the de jure international boundary between Russia and Ukraine. Over land, the border spans five Russian oblasts and five Ukrainian oblasts. Due to the ongoing Russo-Ukrainian War, which began in early 2014, the de facto border between Russia and Ukraine is different from the legal border recognized by the United Nations. As of 2024, Russia is militarily occupying a significant portion of Ukraine, and Ukraine is militarily occupying a very small portion of Russia.

According to a 2016 statement by Viktor Nazarenko, the head of the State Border Guard Service of Ukraine, the Ukrainian government did not have control over 409.3 kilometres (254.3 mi) of the international border with Russia. This stretch of land was formerly controlled by pro-Russian separatists under the Donetsk People's Republic and the Luhansk People's Republic (see War in Donbas), both of which were annexed by Russia in September 2022, seven months after the beginning of the ongoing Russian invasion of Ukraine. Ukraine has also not had authority over the Kerch Strait since 2014, when Russia annexed Crimea; the Ukrainian administration was pushed out of Crimea and Russian checkpoints were set up at the boundary with Kherson Oblast.

The Russo-Ukrainian war began in February 2014 and is ongoing. Following Ukraine's Revolution of Dignity, Russia occupied Crimea and annexed it from Ukraine. It then supported Russian paramilitaries who started a war in the eastern Donbas region against Ukraine's military. In 2018, Ukraine declared the region to be occupied by Russia. The first eight years of conflict also involved naval incidents and cyberwarfare. In February 2022, Russia launched a full-scale invasion of Ukraine and began occupying more of the country, starting the current phase of the war, the biggest conflict in Europe since World War II. The war has resulted in a refugee crisis and hundreds of thousands of deaths.

In early 2014, the Euromaidan protests led to the Revolution of Dignity and the ousting of Ukraine's pro-Russian president Viktor Yanukovych. Shortly after, pro-Russian protests began in parts of southeastern Ukraine, while unmarked Russian troops occupied Crimea. Russia soon annexed Crimea after a highly disputed referendum. In April 2014, Russian-backed militants seized towns and cities in Ukraine's eastern Donbas region and proclaimed the Donetsk People's Republic (DPR) and the Luhansk People's Republic (LPR) as independent states, starting the Donbas war. Russia covertly supported the separatists with its own troops, tanks and artillery, preventing Ukraine from fully retaking the territory. The International Criminal Court (ICC) judged that the war was both a national and international armed conflict involving Russia, and the European Court of Human Rights judged that Russia controlled the DPR and LPR from 2014 onward. In February 2015, Russia and Ukraine signed the Minsk II agreements, but they were never fully implemented in the following years. The Donbas war became a static conflict likened to trench warfare; ceasefires were repeatedly broken but the frontlines did not move.

The Donbas (UK: /dɒnˈbɑːs/, US: /ˈdɒnbɑːs, dʌnˈbæs/; Ukrainian: Донбас [donˈbɑs]) or Donbass (Russian: Донбасс [dɐnˈbas]) is a historical, cultural, and economic region on the Russia-Ukraine border, lying predominantly in Ukraine. The vast majority of the Donbas is occupied by Russia as a result of the Russo-Ukrainian War, as the Russian Armed Forces control about 89% of the region as of October 2025.

The word Donbas is a portmanteau formed from "Donets Basin", an abbreviation of "Donets Coal Basin" (Ukrainian: Донецький вугільний басейн, romanized: Donetskyi vuhilnyi basein; Russian: Донецкий угольный бассейн, romanized: Donetskiy ugolnyy basseyn). The name of the coal basin is a reference to the Donets Ridge; the latter is associated with the Donets river.