paragraph_text: The stated clauses of the Nazi-Soviet non-aggression pact were a guarantee of non-belligerence by each party towards the other, and a written commitment that neither party would ally itself to, or aid, an enemy of the other party. In addition to stipulations of non-aggression, the treaty included a secret protocol that divided territories of Romania, Poland, Lithuania, Latvia, Estonia, and Finland into German and Soviet "spheres of influence", anticipating potential "territorial and political rearrangements" of these countries. Thereafter, Germany invaded Poland on 1 September 1939. After the Soviet–Japanese ceasefire agreement took effect on 16 September, Stalin ordered his own invasion of Poland on 17 September. Part of southeastern (Karelia) and Salla region in Finland were annexed by the Soviet Union after the Winter War. This was followed by Soviet annexations of Estonia, Latvia, Lithuania, and parts of Romania (Bessarabia, Northern Bukovina, and the Hertza region). Concern about ethnic Ukrainians and Belarusians had been proffered as justification for the Soviet invasion of Poland. Stalin's invasion of Bukovina in 1940 violated the pact, as it went beyond the Soviet sphere of influence agreed with the Axis.

paragraph_text: The PTBT was signed by the governments of the Soviet Union, United Kingdom, and United States in Moscow on 5 August 1963 before being opened for signature by other countries. The treaty formally went into effect on 10 October 1963. Since then, 123 other states have become party to the treaty. Ten states have signed but not ratified the treaty.

paragraph_text: After the Russian Revolution and the Russian Civil War the ships of the fleet became dispersed over various countries, and Soviet Russia made efforts via international courts to have them returned. Dobroflot was restored in the Soviet Union in 1922 and included into the Sovtorgflot ("Soviet Commercial Fleet") in 1925.

paragraph_text: Cuban Missile Crisis Part of the Cold War Date October 16 -- 28, 1962 (naval blockade of Cuba ended November 20, 1962) Location Cuba Result Withdrawal of the Soviet Union's nuclear missiles from Cuba Withdrawal of American nuclear missiles from Turkey and Italy Agreement with the Soviet Union that the United States would never invade Cuba without direct provocation Creation of a nuclear hotline between the United States and the Soviet Union Belligerents Soviet Union Cuba Supported by: Warsaw Pact United States Italy Turkey Supported by: NATO Commanders and leaders Nikita Khrushchev Anastas Mikoyan Rodion Malinovsky Issa Pliyev Georgy Abashvili Fidel Castro Raúl Castro Che Guevara John F. Kennedy Robert McNamara Maxwell D. Taylor Curtis LeMay George Whelan Anderson Jr. Robert F. Kennedy Amintore Fanfani Giulio Andreotti Cemal Gürsel Casualties and losses 64 Soviet citizens dead (statistics of the MoD of the RF for 1962 -- 1964) 1 U-2 spy aircraft lost 1 aircraft damaged 1 killed

paragraph_text: Cuban Missile Crisis Part of the Cold War Date October 16 -- 28, 1962 (naval blockade of Cuba ended November 20) Location Cuba Result Withdrawal of the Soviet Union's nuclear missiles from Cuba Withdrawal of American nuclear missiles from Turkey and Italy Agreement with the Soviet Union that the United States would never invade Cuba without direct provocation Creation of a nuclear hotline between the United States and the Soviet Union Belligerents Soviet Union Cuba Supported by: Warsaw Pact United States Italy Turkey Supported by: NATO Commanders and leaders Nikita Khrushchev Anastas Mikoyan Rodion Malinovsky Issa Pliyev Georgy Abashvili Fidel Castro Raúl Castro Che Guevara John F. Kennedy Robert McNamara Maxwell D. Taylor Curtis LeMay George Whelan Anderson Jr. Robert F. Kennedy Amintore Fanfani Giulio Andreotti Cemal Gürsel Casualties and losses 64 Soviet citizens dead (statistics of the MoD of the RF for 1962 -- 1964) 1 U-2 spy aircraft lost 1 aircraft damaged 1 killed

paragraph_text: In 1957 the Soviet Union launched the world's first artificial satellite, Sputnik 1. Since then, about 6,600 satellites from more than 40 countries have been launched. According to a 2013 estimate, 3,600 remained in orbit. Of those, about 1,000 were operational; while the rest have lived out their useful lives and become space debris. Approximately 500 operational satellites are in low - Earth orbit, 50 are in medium - Earth orbit (at 20,000 km), and the rest are in geostationary orbit (at 36,000 km). A few large satellites have been launched in parts and assembled in orbit. Over a dozen space probes have been placed into orbit around other bodies and become artificial satellites to the Moon, Mercury, Venus, Mars, Jupiter, Saturn, a few asteroids, a comet and the Sun.

paragraph_text: Serhiy Marusyn (born April 1, 1958 in Kanadei, Ulyanovsk Oblast, Soviet Union) is a Ukrainian coach and a former Soviet footballer, the best known for his participation with the Odessa Army Club.

paragraph_text: With an area of 2,700,000 square kilometres (1,000,000 sq mi) – equivalent in size to Western Europe – Kazakhstan is the ninth-largest country and largest landlocked country in the world. While it was part of the Soviet Union, Kazakhstan lost some of its territory to China's Xinjiang autonomous region and some to Uzbekistan's Karakalpakstan autonomous republic.

paragraph_text: Following the Welles Declaration of July 23, 1940, the annexation of Latvia into the Soviet Union (USSR) on 5 August 1940 was not recognized as legitimate by the United States, the European Community, and recognition of it as the nominal fifteenth constituent republic of the USSR was withheld for five decades. Its territory was subsequently conquered by Nazi Germany in June -- July 1941, before being retaken by the Soviets in 1944 -- 1945. Nevertheless, Latvia continued to exist as a de jure independent country with a number of countries continued to recognize Latvian diplomats and consuls who still functioned in the name of their former governments.

paragraph_text: Previously, Moldovan athletes competed as part of the Soviet Union at the Olympics from 1952 to 1988, and after the dissolution of the Soviet Union, Moldova was part of the Unified Team in 1992.

paragraph_text: On 27 October 1981, a Whiskey-class submarine (U 137) from the Soviet Union ran aground close to the naval base at Karlskrona in the southern part of the country. Research has never clearly established whether the submarine ended up on the shoals through a navigational mistake or if an enemy committed espionage against Swedish military potential. The incident triggered a diplomatic crisis between Sweden and the Soviet Union. Following the 1986 assassination of Olof Palme and with the end of the Cold War, Sweden has adopted a more traditional foreign policy approach. Nevertheless, the country remains active in peace keeping missions and maintains a considerable foreign aid budget.

paragraph_text: Karl Parts VR I/1, VR II/2, VR II/3 (15 July 1886 in Palupera Commune, Estonia – 1 September 1941 in Kirov, Soviet Union) was an Estonian military commander during the Estonian War of Independence.

paragraph_text: Pojuschie Gitary ( , "The Singing Guitars") were the Soviet Union's first rock band to reach a phenomenal rate of success and popularity in the Soviet Union, Eastern Europe and in other countries. For that reason, they are often nicknamed "the Soviet Beatles" in a manner not that different from Hungary's Illés and Poland's Czerwone Gitary, whose name means "Red Guitars".

paragraph_text: As African states became independent in the 1960s, the Soviet Union offered many of their citizens the chance to study in Russia. Over a period of 40 years, about 400,000 African students from various countries moved to Russia to pursue higher studies, including many Black Africans. This extended beyond the Soviet Union to many countries of the Eastern bloc.

paragraph_text: Armenia was annexed by Bolshevist Russia and along with Georgia and Azerbaijan, it was incorporated into the Soviet Union as part of the Transcaucasian SFSR (TSFSR) on 4 March 1922. With this annexation, the Treaty of Alexandropol was superseded by the Turkish-Soviet Treaty of Kars. In the agreement, Turkey allowed the Soviet Union to assume control over Adjara with the port city of Batumi in return for sovereignty over the cities of Kars, Ardahan, and Iğdır, all of which were part of Russian Armenia.

paragraph_text: Under the 1977 Constitution of the Union of Soviet Socialist Republics (USSR), the Chairman of the Council of Ministers was the head of government and the Chairman of the Presidium of the Supreme Soviet was the head of state. The office of the Chairman of the Council of Ministers was comparable to a prime minister in the First World, whereas the office of the Chairman of the Presidium was comparable to a president in the First World. In the Soviet Union's seventy - year history there was no official leader of the Soviet Union office, but during most of that era there was a de facto top leader who usually led the country through the office of the Premier or the office of the General Secretary of the Communist Party of the Soviet Union (CPSU). In the ideology of Vladimir Lenin the head of the Soviet state was a collegiate body of the vanguard party (see What Is to Be Done?).

paragraph_text: After World War II, eastern European countries such as the Soviet Union, Poland, Czechoslovakia, Hungary, Romania and Yugoslavia expelled the Germans from their territories. Many of those had inhabited these lands for centuries, developing a unique culture. Germans were also forced to leave the former eastern territories of Germany, which were annexed by Poland (Silesia, Pomerania, parts of Brandenburg and southern part of East Prussia) and the Soviet Union (northern part of East Prussia). Between 12 and 16,5 million ethnic Germans and German citizens were expelled westwards to allied-occupied Germany.

paragraph_text: Stanislav Vyacheslavovich Zabrodsky (Cyrillic:Станислав Вячеславович Забродский ; born 1 January 1962, Kharkiv, Ukrainian SSR, Soviet Union) is a retired archer. Zabrodsky represented three countries (Unified Team, Ukraine and Kazakhstan) at four Summer Olympics in 1992, 1996, 2000 and 2004. He also represented the Soviet Union at pre-1992 tournaments, including at the 1989 World Archery Championships, where he won two gold medals and broke four world records.

paragraph_text: "Ballad of a Soldier" was released on December 1, 1959 in the Soviet Union and sold 30.1 million tickets at screenings.

paragraph_text: Skrunda-1, also known as Skrunda-2, is a ghost town and former Soviet radar station located 5 km (3 mi) to the north of Skrunda, in Raņķi Parish, Latvia. It was the site of two Dnepr radar (NATO "Hen House") radar installations constructed in the 1960s. A Daryal radar was being built there before the collapse of the Soviet Union. Skrunda was strategically important to the Soviet Union as its radars covered Western Europe. The two barn-like radars were one of the most important Soviet early warning radar stations for listening to objects in space and for tracking possible incoming ICBMs.

Question: when did the country Skrunda-1 is located become part of the Soviet Union?
Answer: 5 August 1940