Rostov Oblast in the context of "Donets"

Krasnodar Krai (Russian: Краснода́рский край, romanized: Krasnodarskiy kray, [krəsnɐˈdarskʲɪj kraj]) is a federal subject of Russia (a krai), located in the North Caucasus region in Southern Russia and is administratively a part of the Southern Federal District. Its administrative center is the city of Krasnodar. The third most populous federal subject in Russia, it had a population of 5,838,273 as of the 2021 Census.

Krasnodar Krai is formally and informally referred to as Kuban (Russian: Кубань), a term denoting the historical region of Kuban situated between the Sea of Azov and the Kuban River which is predominantly within the krai. It is bordered by Rostov Oblast to the north, Stavropol Krai to the east, Karachay-Cherkessia to the south-east. Adygea is an enclave entirely within the krai. Krasnodar Krai shares an international border with Georgia and borders annexed Crimea to the west, across the Kerch Strait.

The Black Sea Fleet (Russian: Черноморский флот, romanized: Chernomorskiy flot) is the fleet of the Russian Navy in the Black Sea, the Sea of Azov and the Mediterranean Sea. The Black Sea Fleet, along with other Russian ground and air forces on the Crimean Peninsula, are subordinate to the Southern Military District of the Russian Armed Forces. The fleet traces its history to its founding by Prince Potemkin on 13 May 1783 as part of the Imperial Russian Navy. The Russian SFSR inherited the fleet in 1918; with the founding of the Soviet Union in 1922, it became part of the Soviet Navy. Following the collapse of the Soviet Union in 1991, the Black Sea Fleet was partitioned between the Russian Federation and Ukraine in 1997, with Russia receiving title to 82% of the vessels.

The Black Sea Fleet has its official primary headquarters and facilities at the Sevastopol Naval Base, Crimea, which Russia annexed from Ukraine in 2014. The rest of the fleet's facilities are based in locations on the Black Sea and the Sea of Azov, including Krasnodar Krai, Rostov Oblast and Crimea.

Kalmykia, officially the Republic of Kalmykia, is a republic of Russia, located in the Volga region of European Russia. The republic is part of the Southern Federal District, and borders Dagestan to the south and Stavropol Krai to the southwest; Volgograd Oblast to the northwest and north and Astrakhan Oblast to the north and east; Rostov Oblast to the west and the Caspian Sea to the east. Through the Caspian Depression, the Kuma river forms Kalmykia's natural border with Dagestan. Kalmykia is the only polity within Europe where the Dharmic religion of Buddhism is the predominant religion; the majority of Kalmyk people are Vajrayana Tibetan Buddhists of the Gelug and Kagyu lineages.

The Kalmykia republic covers an area of 76,100 square kilometres (29,400 square miles), with a small population of about 275,000 residents. The republic of Kalmykia is home of the Kalmyks, a people of Oirat Mongolian origin who are mainly of Tibetan Buddhist faith. The capital of the republic is the city of Elista.

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.

The Order of the Red Banner Southern Military District (Russian: Южный военный округ, romanized: Yuzhnyy voyennyy okrug) is a military district of Russia.It is one of the five military districts of the Russian Armed Forces, with its jurisdiction primarily within the North Caucasus region of the country, and Russian bases in South Caucasian post-Soviet states. The Southern Military District was created as part of the 2008 military reforms, and founded by Presidential Decree №1144 signed on September 20, 2010, to replace the North Caucasus Military District, and absorbing the military commands of the Black Sea Fleet and Caspian Flotilla. The district began operation on October 22, 2010, under the command of Colonel-General Aleksandr Galkin.

The Southern Military District is the smallest military district in Russia by geographic size. The district contains 13 federal subjects of Russia: Adygea, Astrakhan Oblast, Chechnya, Dagestan, Ingushetia, Kabardino-Balkaria, Kalmykia, Karachay-Cherkessia, Krasnodar Krai, North Ossetia-Alania, Rostov Oblast, Stavropol Krai and Volgograd Oblast. After the full-scale Russian invasion of Ukraine was launched on 24 February 2022, six oblasts of Ukraine, partially occupied by Russia, were announced as being added to the district: the Crimea, Donetsk, Kherson, Lugansk, Sevastopol and Zaporozhye. These territories are components of Ukraine which since early 2022 have been partially or fully militarily occupied by Russian military forces.

Volgograd Oblast (Russian: Волгоградская область, IPA: [vəɫɡɐˈgratskəjə ˈobɫəsʲtʲ]) is a federal subject (oblast) of Russia, located in the Lower Volga region of Southern Russia. Its administrative center is Volgograd. The population of the oblast was 2,500,781 in the 2021 Census.

Formerly known as Stalingrad Oblast, it was given its present name in 1961, when the city of Stalingrad was renamed Volgograd as part of the process of de-Stalinization. Volgograd Oblast borders Rostov Oblast in the southwest, Voronezh Oblast in the northwest, Saratov Oblast in the north, Astrakhan Oblast and the Republic of Kalmykia in the southeast, and has an international border with Kazakhstan in the east. The two main rivers in European Russia, the Don and the Volga, run through the oblast and are connected by the Volga–Don Canal. Volgograd Oblast's strategic waterways have made it a popular route for shipping and for the generation of hydroelectricity.

The Donets Ridge is a highland that is the highest north-eastern part of the Donets upland. The ridge is in the Donetsk and Luhansk Oblasts of Ukraine and partially in the Rostov Oblast of Russia. The highest point on the ridge is a hill — Mohyla Mechetna, 367 m (1,204 ft).

Another hill, Savur-Mohyla (278 m (912 ft)), was a notable site in the War in Donbass.

Rostov-on-Don, or simply Rostov, is a port city and the administrative centre of Rostov Oblast and the Southern Federal District of Russia. It lies in the southeastern part of the East European Plain on the Don River, 32 kilometers (20 mi) from the Sea of Azov, directly north of the North Caucasus. The southwestern suburbs of the city lie above the Don river delta. Rostov-on-Don has a population of over one million people and is an important cultural, educational, economic and logistical centre of Southern Russia.