Question: The person who composed Den Pobedy was from what country?

full_context: Document 1: Georgy Sviridov: Georgy Vasilyevich Sviridov (Russian: Гео́ргий Васи́льевич Свири́дов; his patronymic is also transliterated "Vasil'yevich", "Vasilievich", and "Vasil'evich") (December 16, 1915 – January 6, 1998) was a Russian neoromantic composer, active in the Soviet era. He is most widely known for his choral music, strongly influenced by the traditional chant of the Russian Orthodox Church, as well as his orchestral works which often celebrate elements of Russian culture. Sviridov employed, in his choral music especially, rich and dense harmonic textures, embracing a romantic-era tonality; his works would come to incorporate not only sacred elements of Russian church music, including vocal work for the basso profundo, but also display the influence of Eastern European folk music, 19th-century European romantic composers (especially Tchaikovsky), as well as neoromantic contemporaries outside of Russia. He wrote musical settings of Russian Romantic-era poetry by poets such as Lermontov, Tyutchev and Blok. Sviridov enjoyed critical acclaim for much of his career in the USSR.
Document 2: Isaak Dunayevsky: Isaak Osipovich Dunayevsky (Russian: "Исаак Осипович Дунаевский" ; also transliterated as Dunaevski or Dunaevsky; 30 January [O.S. 18 January] 1900 25 July 1955) was a Soviet film composer and conductor of the 1930s and 1940s, who achieved huge success in music for operetta and film comedies, frequently working with the film director Grigori Aleksandrov. He is considered one of the greatest Soviet composers of all time. Many of his songs are very well known and held in high regard in Russia and the former Soviet Union.
Document 3: Den Pobedy: "Den Pobedy" (Russian: День Победы , English: Victory Day ) ranks among the most popular in the large corpus of Russian songs, devoting to Second World War. The song refers to the Victory Day (9 May) celebration and differs from most of these by its cheerful intonations of a marching song and by the fact that it was composed some thirty years after the war. In the words of Vladimir Shainsky, a veteran composer, "the song seemed to have turned back the time. Although written three decades after the war, it now seems that it was this song that helped us to gain the victory".
Document 4: 1996 Moscow Victory Day Parade: The 1996 Moscow Victory Day Parade was a parade held in Red Square on 9 May 1996 to commemorate the 51st anniversary of the capitulation of Nazi Germany in 1945. The annual parade marks the Allied victory in the Great Patriotic War on the same day as the signing of the German act of capitulation to the Allies in Berlin, at midnight 9 May 1945 (Russian time).The Supreme Commander of Russian Armed Forces, President of Russia Boris Yeltsin, Prime Minister Viktor Chernomyrdin, Moscow Mayor Yuri Luzhkov, as well as government officials stood on the grandstand of Lenin's Mausoleum. It would be the last time the Mausoleum would be used in a Moscow parade. The parade commander was the commander of the Moscow Military District, Colonel-General Leonid Kuznetsov. The parade was inspected by the Defense Minister of Russia, General of the Army Pavel Grachev. 7,370 military personnel took part in the parade. Military equipment did not participate in the parade. The parade is also the first time the Victory Banner was trooped on Red Square before the parade.
Document 5: 2000 Moscow Victory Day Parade: The Moscow Victory Day Parade of 2000 was held on 9 May 2000 to commemorate the 55th anniversary of the capitulation of Nazi Germany in 1945. The parade marks the Soviet Union's victory in the Great Patriotic War. The parade was commanded by Colonel General Ivan E Puzanov, Commander of the Moscow Military District, and reviewed by the Minister of Defence, Marshal of the Russian Federation Igor Sergeyev. The historical part of the parade was commanded by the former Moscow Military District commander General of the Army Vladimir Govorov. A speech was made by the newly elected president Vladimir Putin.
Document 6: Monty: His Part in My Victory: Monty: His Part in My Victory, Spike Milligan's third volume of war memoirs, co-written with Jack Hobbs, runs to only about 90 pages of text. It recounts a period when the Nazis have been defeated in Africa and Milligan is not fighting. The book mostly describes Milligan's activities on leave, playing in a band and minor adventures and tribulations while on duty. Events span from May to September 1943: just after Operation "Torch", the liberation of Africa in World War II, to Milligan's embarkation in Salerno, Italy.
Document 7: Victory March (fight song): "Victory March" is the fight song for the University of Notre Dame. The Rev. Michael J. Shea, a 1905 Notre Dame graduate, wrote the music, and his brother, John F. Shea, who earned degrees from Notre Dame in 1906 and 1908, wrote the original lyrics. The lyrics were revised in the 1920s; "Victory March" first appeared under the copyright of the University of Notre Dame in 1928.
Document 8: Lev Leshchenko: Lev Valerjanovich Leshchenko (Russian: Лев Валерианович Лещенко ; born 1 February 1942), is a Russian singer, who was best known for his rendition of "Den Pobedy" and the 1980 Summer Olympics closing ceremony theme song "Do svidanja, Moskva".
Document 9: 50 Let Pobedy: NS "50 Let Pobedy" (Russian: 50 лет Победы ), translated as "50 Years of Victory" or "Fiftieth Anniversary of Victory" (referring to victory in the Second World War), is a Russian "Arktika"-class nuclear-powered icebreaker. She was the world's largest nuclear-powered icebreaker until surpassed by the LK-60Ya-class "Arktika" (launched 2016).
Document 10: Victors Avenue: It was created in 1980 as Masherov Avenue in honor of the leader of Soviet Belarus Petr Masherov. It was renamed to Victors Avenue in honor of the 60th anniversary of the end of WWII in 2005. The Minsk Hero City Obelisk memorial commemorates the fact that Minsk was declared a Hero City on 26 June 1974 for the bravery of the residents during the Battle of Minsk in 1941.
Document 11: Symphony No. 12 (Shostakovich): Dmitri Shostakovich composed his Symphony No. 12 in D minor, Op. 112, subtitled "The Year of 1917", in 1961, dedicating it to the memory of Vladimir Lenin, leader of the Bolshevik Revolution, as he did for his Symphony No. 2. The symphony was premiered that October by the Leningrad Philharmonic Orchestra under conductor Yevgeny Mravinsky. This was also the last Shostakovich symphony which Mravinsky premiered; his refusal to give the first performance of the Thirteenth Symphony, "Babi Yar", caused a permanent strain in their working relationship.
Document 12: Dmitri Shostakovich: Dmitri Dmitriyevich Shostakovich (Russian: Dmitriy Dmitrievich Shostakovich , ] ; 25 September [O.S. 12 September] 1906 9 August 1975) was a Russian composer and pianist. He is regarded as one of the major composers of the 20th century.
Document 13: Vladimir Shainsky: Vladimir Yakovlevich Shainsky (Russian: Владимир Яковлевич Шаинский ; born 12 December 1925) is a Soviet and Russian composer.
Document 14: Alexander Vasilyevich Alexandrov: Alexander Vasilyevich Alexandrov (Russian: Александр Васильевич Александров , "Aleksandr Vasilevich Aleksandrov") (13 April [O.S. 1 April] 1883 – 8 July 1946) was a Russian Soviet composer, the founder of the Alexandrov Ensemble, who wrote the music for the State Anthem of the Soviet Union, which, in 2000, became the national anthem of Russia (with new lyrics). During his career, he also worked as a professor of the Moscow State Conservatory, and became a Doctor of Arts. His work was recognized by the awards of the title of People's Artist of the USSR and the Stalin Prize.
Document 15: Vladimir Vysotsky: Vladimir Semyonovich Vysotsky (Russian: Влади́мир Семёнович Высо́цкий ; ] ; 25 January 1938 – 25 July 1980) was a Russian singer-songwriter, poet, and actor whose career had an immense and enduring effect on Soviet and Russian culture. He became widely known for his unique singing style and for his lyrics, which featured social and political commentary in often humorous street jargon. He was also a prominent stage and screen actor. Though his work was largely ignored by the official Soviet cultural establishment, he achieved remarkable fame during his lifetime, and to this day exerts significant influence on many of Russia's popular musicians and actors who wish to emulate his iconic status.
ground_truth: Russia