Problem: Background: Thich Quang Duc (Vietnamese: [thic kwa:NG dik] ( listen); 1897--11 June 1963, born Lam Van Tuc), was a Vietnamese Mahayana Buddhist monk who burned himself to death at a busy Saigon road intersection on 11 June 1963. Quang Duc was protesting the persecution of Buddhists by the South Vietnamese government led by Ngo Dinh Diem. Photographs of his self-immolation were circulated widely across the world and brought attention to the policies of the Diem government. John F. Kennedy said in reference to a photograph of Duc on fire, "No news picture in history has generated so much emotion around the world as that one."
Context: In a country where surveys of the religious composition at the time estimated the Buddhist majority to be between 70 and 90 percent, President Diem was a member of the Catholic minority, and pursued discriminatory policies favoring Catholics for public service and military promotions, as well as in the allocation of land, business arrangements and tax concessions. Diem once told a high-ranking officer, forgetting that the officer was from a Buddhist family, "Put your Catholic officers in sensitive places. They can be trusted." Many officers in the Army of the Republic of Vietnam converted to Roman Catholicism as their military prospects depended on it. Additionally, the distribution of firearms to village self-defense militias saw weapons given only to Roman Catholics, with some Buddhists in the army being denied promotion if they refused to convert to Roman Catholicism. Some Roman Catholic priests ran their own private armies, and there were forced conversions and looting, shelling, and demolition of pagodas in some areas, to which the government turned a blind eye. Some Buddhist villages converted en masse to receive aid or avoid being forcibly resettled by Diem's regime. The "private" status that was imposed on Buddhism by the French, which required official permission to be obtained by those wishing to conduct public Buddhist activities, was not repealed by Diem. Catholics were also de facto exempt from corvee labor, which the government obliged all citizens to perform, and United States aid was distributed disproportionately to Catholic majority villages by Diem's regime. The Roman Catholic Church was the largest landowner in the country and enjoyed special exemptions in property acquisition, and land owned by the Roman Catholic Church was exempt from land reform. The white and gold Vatican flag was regularly flown at all major public events in South Vietnam, and Diem dedicated his country to the Virgin Mary in 1959. Buddhist discontent erupted following a ban in early May on flying the Buddhist flag in Hue on Vesak, the birthday of Gautama Buddha. Just days before, Catholics had been encouraged to fly the Vatican flag at a celebration for Archbishop Ngo Dinh Thuc of Hue, Diem's elder brother. A large crowd of Buddhists protested the ban, defying the government by flying Buddhist flags on the Buddhist holy day of Vesak and marching on the government broadcasting station. Government forces fired into the crowd of protesters, killing nine people. Diem's refusal to take responsibility -- he blamed the Viet Cong for the deaths -- led to further Buddhist protests and calls for religious equality. As Diem remained unwilling to comply with Buddhist demands, the frequency of protests increased.
Question: Did they protest or do anything to fight the ban?
Answer: A large crowd of Buddhists protested the ban, defying the government by flying Buddhist flags on the Buddhist holy day of Vesak and marching on the government broadcasting station.

Background: The Alexandrov Ensemble (Russian: Ansambl' Aleksandrova, tr. Ansambl' Aleksandrova; commonly known as the Red Army Choir in the West) is an official army choir of the Russian armed forces. Founded during the Soviet era, the ensemble consists of a male choir, an orchestra, and a dance ensemble.
Context: In 1948 much of Berlin was still ruined after World War II, and the city was divided into four occupation zones, controlled by the USSR, France, the UK and the United States. This was before the Berlin Wall was built, and it was still possible to travel between zones. An American officer suggested a concert in the Gendarmenmarkt (in the Soviet zone at the time), and the French zone commander supported the suggestion. The musicians were to be provided by the USSR, and the Alexandrov Ensemble was chosen. A temporary stage was set up in the square, with flowers all along the front. 30,000 people came to stand and watch for three hours. In 1994, towards the end of his life, Boris Alexandrov said: "The visit to Germany was unforgettable. It is dominant in the history of the ensemble. It was necessary to make a new creative leap - from wartime military music to postwar relaxing harmony. It was important, and the transition had to be managed on many fronts, including getting the Ensemble back into its original pre-war role, performing the classics and singing folk songs. Before the war the Ensemble had 200 professional singers; following the war it was down to 60." A previous tour to East Germany had been cancelled due to the sudden death of Alexander Alexandrov in 1946 in Potsdam, when in his bed was found an annotated copy of Beethoven's Symphony No. 9, showing that A. Alexandrov had been preparing the final chorus for a performance. Now Boris, his son, was ready to follow his father's plan. The 1948 peace concert was to consist of German opera extracts and Russian folk songs (Nightingales, Zemlyanka and Roads); and after an intervention by the tenor Victor Nikitin, some German folk songs were also included. The people joined in, singing Heidenroslein, and Nikitin sang Kalinka three times in a row. The concert was very successful, and very moving. A sound recording of the concert was made, and pressed in 1985 under the Radio DDR 1 label. This is listed on the Alexandrov Ensemble discography page. However the Berlin Peace Concert did not happen in isolation. It was part of a series of punishing yearly tours to war-torn areas. The main tour season during and just after World War II appears to have run from June to October - perhaps because the large troupe usually had to perform outdoors, to accommodate large audiences. The August 1948 Berlin concert occurred two-thirds of the way through a tour to (20 June to 18 July) Prague, Most, Brno, Devin, Bratislava, Moravska Ostrava, Zilina and Kosice in Czechoslovakia; then apparently without a break (18 July to 10 October) Dresden, Weimar, Magdeburg, Stendal, Schwerin, Potsdam, Berlin, Rathenow, Leipzig, Halle, Lane, Erfurt, Chemnitz, Frankfurt an der Oder and Schwarzenberg in Germany. In 1990, the ensemble participated in Roger Waters' The Wall concert celebrating the fall of the Berlin Wall. They performed an anti-war song, Bring the Boys Back Home.
Question: what role did Alexandrov play in the peace concert?
Answer:
The musicians were to be provided by the USSR, and the Alexandrov Ensemble was chosen.