Bolshevik in the context of "Dual power"

Crimea (/kraɪˈmiːə/ kry-MEE-ə) is a peninsula in Eastern Europe, on the northern coast of the Black Sea, almost entirely surrounded by the Black Sea and the smaller Sea of Azov. The Isthmus of Perekop connects the peninsula to Kherson Oblast in mainland Ukraine. To the east, the Crimean Bridge, constructed in 2018, spans the Strait of Kerch, linking the peninsula with Krasnodar Krai in Russia. The Arabat Spit, located to the northeast, is a narrow strip of land that separates the Syvash lagoons from the Sea of Azov. Across the Black Sea to the west lies Romania and to the south is Turkey. The population is 2.4 million, and the largest city is Sevastopol. The region, internationally recognised as part of Ukraine, has been under Russian occupation since 2014.

Called the Tauric Peninsula until the early modern period, Crimea has historically been at the boundary between the classical world and the steppe. Greeks colonised its southern fringe and were absorbed by the Roman and Byzantine Empires and successor states while remaining culturally Greek. Some cities became trading colonies of Genoa, until conquered by the Ottoman Empire. Throughout this time the interior was occupied by a changing cast of steppe nomads, coming under the control of the Golden Horde in the 13th century from which the Crimean Khanate emerged as a successor state. In the 15th century, the Khanate became a dependency of the Ottoman Empire. Lands controlled by Russia and Poland-Lithuania were often the target of slave raids during this period. In 1783, after the Russo-Turkish War (1768–1774), the Russian Empire annexed Crimea. Crimea's strategic position led to the 1854 Crimean War and many short lived regimes following the 1917 Russian Revolution. When the Bolsheviks secured Crimea, it became an autonomous soviet republic within the Russian Soviet Federative Socialist Republic. It was occupied by Germany during World War II. When the Soviets retook it in 1944, Crimean Tatars were ethnically cleansed and deported under the orders of Joseph Stalin, in what has been described as a cultural genocide. Crimea was downgraded to an oblast in 1945. In 1954, the USSR transferred the oblast to the Ukrainian Soviet Socialist Republic on the 300th anniversary of the Pereyaslav Treaty in 1654.

Joseph Vissarionovich Stalin (né Dzhugashvili; 18 December [O.S. 6 December] 1878 – 5 March 1953) was a Soviet politician, dictator and revolutionary who led the Soviet Union from 1924 until his death in 1953. His rule oversaw mass atrocities that caused an estimated 20 million deaths, and he is widely considered one of the most brutal despots of the modern era. He held office as General Secretary of the Communist Party from 1922 to 1952 and as premier from 1941 until his death. Despite initially governing the country as part of a collective leadership, he eventually consolidated power to become a dictator by the 1930s. Stalin codified the party's official interpretation of Marxism as Marxism–Leninism, and his version of it is referred to as Stalinism.

Born into a poor Georgian family in Gori, Russian Empire, Stalin attended the Tiflis Theological Seminary before joining the Marxist Russian Social Democratic Labour Party. He raised funds for Vladimir Lenin's Bolshevik faction through bank robberies and other crimes, and edited the party's newspaper, Pravda. He was repeatedly arrested and underwent several exiles to Siberia. After the Bolsheviks seized power in the October Revolution of 1917, Stalin served as a member of the Politburo, and from 1922 used his position as General Secretary to gain control over the party bureaucracy. After Lenin's death in 1924, Stalin won the leadership struggle over rivals including Leon Trotsky. Stalin's doctrine of socialism in one country became central to the party's ideology, and his five-year plans starting in 1928 led to forced agricultural collectivisation, rapid industrialisation, and a centralised command economy. His policies contributed to a famine in 1932–1933 which killed millions, including in the Holodomor in Ukraine. Between 1936 and 1938, Stalin executed hundreds of thousands of his real and perceived political opponents in the Great Purge. Under his regime, an estimated 18 million people passed through the Gulag system of forced labour camps, and more than six million people, including kulaks and entire ethnic groups, were deported to remote areas of the country.

The Russian Civil War (Russian: Гражданская война в России, romanized: Grazhdanskaya voyna v Rossii) was a multi-party civil war in the former Russian Empire sparked by the 1917 overthrowing of the Russian Provisional Government in the October Revolution, as many factions vied to determine Russia's political future. It resulted in the formation of the Russian Socialist Federative Soviet Republic and later the Soviet Union in most of its territory. Its finale marked the end of the Russian Revolution, which was one of the key events of the 20th century.

The Russian monarchy ended with the abdication of Tsar Nicholas II during the February Revolution, and Russia was in a state of political flux. A tense summer culminated in the October Revolution, where the Bolsheviks overthrew the provisional government of the new Russian Republic. Bolshevik seizure of power was not universally accepted, and the country descended into a conflict which became a full-scale civil war in May–June 1918. The two largest combatants were the Red Army, fighting for the establishment of a Bolshevik-led socialist state headed by Vladimir Lenin, and the forces known as the White movement (and its White Army), led mainly by the right-leaning officers of the Russian Empire, united around the figure of Alexander Kolchak. In addition, rival militant socialists, notably the Ukrainian anarchists of the Makhnovshchina and Left Socialist-Revolutionaries, were involved in conflict against the Bolsheviks. They, as well as non-ideological green armies, opposed the Bolsheviks, the Whites and the foreign interventionists. Thirteen foreign states intervened against the Red Army, notably the Allied intervention, whose primary goal was re-establishing the Eastern Front of World War I. Three foreign states of the Central Powers also intervened, rivaling the Allied intervention with the main goal of retaining the territory they had received in the Treaty of Brest-Litovsk with Soviet Russia.

The Second Congress of the Russian Social Democratic Labour Party was held from July 30 to August 23 (July 17 – August 10, O.S.) 1903, starting in Brussels, Belgium (until August 6) and ending in London, England. Probably as a result of diplomatic pressure from the Russian Embassy, Belgian police had forced the delegates to leave the country on August 6. The congress finalized the creation of the Marxist party in Russia proclaimed at the 1st Congress of the RSDLP. This congress brought the first split within the party, between the Bolshevik faction led by Lenin, and the Menshevik faction led by Martov.

Volgograd, formerly Tsaritsyn (1589–1925) and Stalingrad (1925–1961), is the largest city and the administrative centre of Volgograd Oblast, Russia. The city lies on the western bank of the Volga, covering an area of 859.4 square kilometres (331.8 square miles), with a population of slightly over one million residents. Volgograd is the 16th-largest city by population size in Russia, the third-largest city of the Southern Federal District, and the fourth-largest city on the Volga.

The city was founded as the fortress of Tsaritsyn in 1589. By the 19th century, Tsaritsyn had become an important river-port and commercial centre, leading to its rapid population growth. In November 1917, at the start of the Russian Civil War, Tsaritsyn came under Bolshevik control. It fell briefly to the White Army in mid-1919 but returned to Bolshevik control in January 1920. In 1925, the city was renamed Stalingrad in honor of Joseph Stalin, who took part in defending the city against the White Army who had then ruled the country. During World War II, Axis forces attacked the city, leading to the Battle of Stalingrad, the largest and bloodiest battle in World War II, from which it received the title of Hero City. The Soviet victory at Stalingrad is widely held to be the turning point of World War II, leading to the destruction of the German army in the East. In 1961, Nikita Khrushchev's administration renamed the city to Volgograd as part of de-Stalinization.

Yekaterinburg (/jɪˈkætərɪnbɜːrɡ/ yih-KAT-ər-in-burg; Russian: Екатеринбург, IPA: [jɪkətʲɪrʲɪnˈburk] ), alternatively romanized as Ekaterinburg and formerly known as Sverdlovsk (Свердловск IPA: [svʲɪrˈdlofsk] ; 1924–1991), is a city and the administrative centre of Sverdlovsk Oblast and the Ural Federal District, Russia. The city is located on the Iset River between the Volga-Ural region and Siberia, with a population of roughly 1.5 million residents, up to 2.2 million residents in the urban agglomeration. Yekaterinburg is the fourth most populous city in Russia, the largest city in the Ural Federal District, and one of Russia's main cultural and industrial centres. Yekaterinburg has been dubbed the "Third capital of Russia", as it is ranked third by the size of its economy, culture, transportation and tourism.

Yekaterinburg was founded on 18 November 1723 and named after the Orthodox name of Catherine I (born Marta Helena Skowrońska), the wife of Russian Emperor Peter the Great. The city served as the mining capital of the Russian Empire as well as a strategic connection between Europe and Asia. In 1781, Catherine the Great gave Yekaterinburg the status of a district town of Perm Province, and built the historical Siberian Route through the city. Yekaterinburg became a key city to Siberia, which had rich resources. In the late 19th century, Yekaterinburg became one of the centres of revolutionary movements in the Urals. In 1924, after the Russian SFSR founded the Soviet Union, the city was renamed Sverdlovsk after the Bolshevik leader Yakov Sverdlov. During the Soviet era, Sverdlovsk was turned into an industrial and administrative powerhouse. On 23 September 1991 the city returned to its historical name.