Question: Who is the 2017 president of the organization where the US and the country that beat the US in The Miracle On Ice became important members?

full_context: Document 1: Modern history: It is possible that around 62 million people died in the war; estimates vary greatly. About 60% of all casualties were civilians, who died as a result of disease, starvation, genocide (in particular, the Holocaust), and aerial bombing. The former Soviet Union and China suffered the most casualties. Estimates place deaths in the Soviet Union at around 23 million, while China suffered about 10 million. No country lost a greater portion of its population than Poland: approximately 5.6 million, or 16%, of its pre-war population of 34.8 million died.
Document 2: President of the United Nations General Assembly: Miroslav Lajčák of Slovakia has been elected as the United Nations General Assembly President of its 72nd session beginning in September 2017.
Document 3: Miracle on Ice: For the first game in the medal round, the United States played the Soviets. Finishing the first period tied at 2 -- 2, and the Soviets leading 3 -- 2 following the second, the U.S. team scored two more goals to take their first lead during the third and final period, winning the game 4 -- 3 in a major upset against the Cold War rival. Following the game, the U.S. went on to clinch the gold medal by beating Finland in their final match of the tournament. Likewise, the Soviet Union took the silver medal by beating Sweden.
Document 4: United Nations: The UN has six principal organs: the General Assembly (the main deliberative assembly); the Security Council (for deciding certain resolutions for peace and security); the Economic and Social Council (ECOSOC; for promoting international economic and social co-operation and development); the Secretariat (for providing studies, information, and facilities needed by the UN); the International Court of Justice (the primary judicial organ); and the UN Trusteeship Council (inactive since 1994). UN System agencies include the World Bank Group, the World Health Organization, the World Food Programme, UNESCO, and UNICEF. The UN's most prominent officer is the Secretary - General, an office held by Portuguese António Guterres since 2017. Non-governmental organizations may be granted consultative status with ECOSOC and other agencies to participate in the UN's work.
Document 5: President of the United Nations General Assembly: President of the United Nations General Assembly Emblem of the United Nations Flag of the United Nations Incumbent María Fernanda Espinosa since 18 September 2018 United Nations General Assembly Style Her Excellency Status Presiding officer Member of General Assembly Residence United Nations Headquarters Seat New York City, New York, United States Appointer General Assembly Term length one year Inaugural holder Paul - Henri Spaak Formation 1946 Website un.org/en/ga/
Document 6: Curt Chaplin: Chaplin provided a version of audio play-by-play for one of the most famous moments in American sports history—the Miracle on Ice hockey game during the 1980 Winter Olympics at Lake Placid, New York. The underdog United States national team defeated the Soviet Union national team 4-3 in the semifinal round, beating a team that had won six of the previous seven Olympic gold medals. Chaplin, in an interview, notes that he was assigned to cover the game as a sports reporter for ABC News Radio, not a play-by-play announcer. However, he thought the game might be significant and found a spot near a TV camera to stand and narrate the game into his cassette recorder. His call of the game is now part of an exhibit about the game at the Hockey Hall of Fame.
Document 7: Soviet Union: The Soviet Union suffered greatly in the war, losing around 27 million people. Approximately 2.8 million Soviet POWs died of starvation, mistreatment, or executions in just eight months of 1941 -- 42. During the war, the Soviet Union together with the United States, the United Kingdom and China were considered as the Big Four of Allied powers in World War II and later became the Four Policemen which was the foundation of the United Nations Security Council. It emerged as a superpower in the post-war period. Once denied diplomatic recognition by the Western world, the Soviet Union had official relations with practically every nation by the late 1940s. A member of the United Nations at its foundation in 1945, the Soviet Union became one of the five permanent members of the United Nations Security Council, which gave it the right to veto any of its resolutions.
Document 8: United Nations General Assembly: The General Assembly currently meets under its president or secretary - general in annual sessions at the headquarters of the United Nations in New York City, the main part of which lasts from September to December and resumed part from January until all issues are addressed (which often is just before the next session's start). It can also reconvene for special and emergency special sessions. Its composition, functions, powers, voting, and procedures are set out in Chapter IV of the United Nations Charter. The first session was convened on 10 January 1946 in the Methodist Central Hall in London and included representatives of 51 nations.
Document 9: United Nations Security Council: The Security Council consists of fifteen members. The great powers that were the victors of World War II -- the Soviet Union (now represented by the Russian Federation), the United Kingdom, France, the Republic of China (now represented by the People's Republic of China), and the United States -- serve as the body's five permanent members. These permanent members can veto any substantive Security Council resolution, including those on the admission of new member states or candidates for Secretary - General. The Security Council also has 10 non-permanent members, elected on a regional basis to serve two - year terms. The body's presidency rotates monthly among its members.
Document 10: POW labor in the Soviet Union: Systematic POW labor in the Soviet Union is associated primarily with the outcomes of World War II and covers the period of 1939-1956, from the official formation of the first POW camps, to the repatriation of the last POWs, from the Kwantung Army.
Document 11: Miracle on Ice: The ``Miracle on Ice ''refers to a medal - round game during the men's ice hockey tournament at the 1980 Winter Olympics in Lake Placid, New York, played between the hosting United States, and the four - time defending gold medalists, the Soviet Union.
Document 12: Ice hockey at the 1980 Winter Olympics: The men's ice hockey tournament at the 1980 Winter Olympics in Lake Placid, U.S.A., was the 14th Olympic Championship. Twelve teams competed in the tournament, which was held from February 12 to 24. The United States won its second gold medal, including a win over the heavily favored Soviet Union that became known as the ``Miracle on Ice ''. Games were held at the Olympic Arena and the Olympic Fieldhouse.
Document 13: United Nations: The UN has six principal organs: the General Assembly (the main deliberative assembly); the Security Council (for deciding certain resolutions for peace and security); the Economic and Social Council (ECOSOC; for promoting international economic and social co-operation and development); the Secretariat (for providing studies, information, and facilities needed by the UN); the International Court of Justice (the primary judicial organ); and the UN Trusteeship Council (inactive since 1994). UN System agencies include the World Bank Group, the World Health Organization, the World Food Programme, UNESCO, and UNICEF. The UN's most prominent officer is the Secretary - General, an office held by Portuguese politician and diplomat António Guterres since 2017. Non-governmental organizations may be granted consultative status with ECOSOC and other agencies to participate in the UN's work.
Document 14: Great power: When World War II started in 1939, it divided the world into two alliances—the Allies (the United Kingdom and France at first in Europe, China in Asia since 1937, followed in 1941 by the Soviet Union, the United States); and the Axis powers consisting of Germany, Italy and Japan.[nb 1] During World War II, the United States, United Kingdom, and Soviet Union controlled Allied policy and emerged as the "Big Three". The Republic of China and the Big Three were referred as a "trusteeship of the powerful"  and were recognized as the Allied "Big Four" in Declaration by United Nations in 1942. These four countries were referred as the "Four Policemen" of the Allies and considered as the primary victors of World War II. The importance of France was acknowledged by their inclusion, along with the other four, in the group of countries allotted permanent seats in the United Nations Security Council.
Document 15: Miracle on Ice: Miracle on Ice Total Soviet Union 0 United States 0 Date February 22, 1980 Arena Olympic Center City Lake Placid, New York, U.S. Attendance 8,500
ground_truth: Miroslav Lajčák of Slovakia
sub_queries: who did the us beat in the miracle on ice Answer: the Soviet Union
the us and the Soviet Union became important members in Answer: the United Nations
who is the president of the United Nations 2017 Answer: Miroslav Lajčák of Slovakia