Soviet Union contains the administrative territorial entity Russian Soviet Federative Socialist Republic
The Soviet Union, officially the Union of Soviet Socialist Republics (USSR), was a transcontinental country that spanned much of Eurasia from 1922 to 1991. A flagship communist state, it was nominally a federal union of fifteen national republics; in practice, both its government and its economy were highly centralized until its final years. It was a one-party state governed by the Communist Party of the Soviet Union, with the city of Moscow serving as its capital as well as that of its largest and most populous republic: the Russian SFSR. Other major cities included Leningrad (Russian SFSR), Kiev (Ukrainian SSR), Minsk (Byelorussian SSR), Tashkent (Uzbek SSR), Alma-Ata (Kazakh SSR), and Novosibirsk (Russian SFSR). It was the largest country in the world, covering over 22,402,200 square kilometres (8,649,500 sq mi) and spanning eleven time zones.
The country's roots lay in the October Revolution of 1917, which saw the Bolsheviks overthrow the Russian Provisional Government that formed earlier that year following the February Revolution and the abdication of Tsar Nicholas II, marking the end of the Russian Empire. Following the coup, the Bolsheviks lead by Vladimir Lenin established the Russian Socialist Federative Soviet Republic (RSFSR), the world's first constitutionally guaranteed socialist state. Persisting internal tensions escalated into the brutal Russian Civil War. As the war progressed in the Bolsheviks' favor, the RSFSR began to incorporate land conquered from the war into nominally independent states, which were unified into the Soviet Union in December 1922. Following Lenin's death in 1924, Joseph Stalin came to power. Stalin inaugurated a period of rapid industrialization and forced collectivization that led to significant economic growth, but also contributed to a famine in 1930–1933 that killed millions. The forced labour camp system of the Gulag was also expanded in this period. Stalin conducted the Great Purge to remove his actual and perceived opponents. After the outbreak of World War II, Germany invaded the Soviet Union. The combined Soviet civilian and military casualty count—estimated to be around 20 million people—accounted for the majority of losses of Allied forces. In the aftermath of World War II, the territory occupied by the Red Army formed various Soviet satellite states.
The beginning of the Cold War saw the Eastern Bloc of the Soviet Union confront the Western Bloc of the United States, with the latter grouping becoming largely united in 1949 under NATO and the former grouping becoming largely united in 1955 under the Warsaw Pact. As the Soviet Union already had an armed presence and political domination all over its eastern satellite states by 1955, the pact has been long considered "superfluous", and because of the rushed way in which it was conceived, NATO officials labeled it a "cardboard castle". There was no direct military confrontation between the two organizations; instead, the conflict was fought on an ideological basis and through proxy wars. Both NATO and the Warsaw Pact led to the expansion of military forces and their integration into the respective blocs. The Warsaw Pact's largest military engagement was the Warsaw Pact invasion of Czechoslovakia, its own member state, in August 1968 (with the participation of all pact nations except Albania and Romania), which, in part, resulted in Albania withdrawing from the pact less than one month later. Following Stalin's death in 1953, a period known as de-Stalinization occurred under the leadership of Nikita Khrushchev. The Soviets took an early lead in the Space Race with the first artificial satellite, the first human spaceflight, and the first probe to land on another planet (Venus).
In the 1970s, there was a brief détente in the Soviet Union's relationship with the United States, but tensions resumed following the Soviet invasion of Afghanistan in 1979. In the mid-1980s, the last Soviet leader, Mikhail Gorbachev, sought to reform the country through his policies of glasnost and perestroika. In 1989, during the closing stages of the Cold War, various countries of the Warsaw Pact overthrew their Marxist–Leninist regimes, which was accompanied by the outbreak of strong nationalist and separatist movements across the entire Soviet Union. In 1991, Gorbachev initiated a national referendum—boycotted by the Soviet republics of Lithuania, Latvia, Estonia, Armenia, Georgia, and Moldova—that resulted in the majority of participating citizens voting in favour of preserving the country as a renewed federation. In August 1991, hardline members of the Communist Party staged a coup d'état against Gorbachev; the attempt failed, with Boris Yeltsin playing a high-profile role in facing down the unrest, and the Communist Party was subsequently banned. The Russian Federation became the Soviet Union's successor state, while all of the other republics emerged from the USSR's collapse as fully independent post-Soviet states.
The Soviet Union produced many significant social and technological achievements and innovations. It had the world's second-largest economy, and the Soviet Armed Forces comprised the largest standing military in the world. An NPT-designated state, it possessed the largest arsenal of nuclear weapons in the world. It was a founding member of the United Nations as well as one of the five permanent members of the United Nations Security Council. Before the dissolution, the country had maintained its status as one of the world's two superpowers through its hegemony in Eastern Europe, military and economic strengths and scientific research.Treaty on the Creation of the USSR
On 28 December 1922, a conference of plenipotentiary delegations from the Russian SFSR, the Transcaucasian SFSR, the Ukrainian SSR and the Byelorussian SSR approved the Treaty on the Creation of the USSR and the Declaration of the Creation of the USSR, forming the Union of Soviet Socialist Republics. These two documents were confirmed by the first Congress of Soviets of the USSR and signed by the heads of the delegations, Mikhail Kalinin, Mikhail Tskhakaya, Mikhail Frunze, Grigory Petrovsky and Alexander Chervyakov, on 30 December 1922. The formal proclamation was made from the stage of the Bolshoi Theatre in Moscow.
An intensive restructuring of the economy, industry and politics of the country began in the early days of Soviet power in 1917. A large part of this was done according to the Bolshevik Initial Decrees, government documents signed by Vladimir Lenin. One of the most prominent breakthroughs was the GOELRO plan, which envisioned a major restructuring of the Soviet economy based on total electrification of Russia. The plan became the prototype for subsequent Five-Year Plans and was fulfilled by 1931. After the economic policy of 'War communism' during the Russian Civil War, as a prelude to fully developing socialism in the country, the Soviet government permitted some private enterprise to coexist alongside nationalized industry in the 1920s, and total food requisition in the countryside was replaced by a food tax.
From its creation, the government in the Soviet Union was based on the one-party rule of the Communist Party (Bolsheviks). The stated purpose was to prevent the return of capitalist exploitation, and that the principles of democratic centralism would be the most effective in representing the people's will in a practical manner. The debate over the future of the economy provided the background for a power struggle in the years after Lenin's death in 1924. Initially, Lenin was to be replaced by a 'troika' consisting of Grigory Zinoviev of the Ukrainian SSR, Lev Kamenev of the Russian SFSR, and Joseph Stalin of the Transcaucasian SFSR.
On 1 February 1924, the USSR was recognized by the United Kingdom. The same year, a Soviet Constitution was approved, legitimizing the December 1922 union.
According to Archie Brown the constitution was never an accurate guide to political reality in the USSR. For example the fact that the Party played the leading role in making and enforcing policy was not mentioned in it until 1977. The USSR was a federative entity of many constituent republics, each with its own political and administrative entities. However, the term 'Soviet Russia' – formally applicable only to the Russian Federative Socialist Republic – was often applied to the entire country by non-Soviet writers due to its domination by the Russian SFSR.
contains comprises includes encompasses incorporates