Question: In 1990, who became the president of the country that Germany invaded?

Context paragraphs:
paragraph_text: Hans Modrow (; born 27 January 1928) is a German left-wing politician, best known as the last communist premier of East Germany and the country's "de facto" leader from 1989 to 1990. He was convicted of electoral fraud by the Dresden District Court in 1995. He is currently the honorary Chairman of the Left Party.
title: Hans Modrow
paragraph_text: Mátyás Szűrös (Hungarian pronunciation: [ˈmaːcaːʃ ˈsyːrøʃ]; born 11 September 1933 in Püspökladány) is a Hungarian politician. He served as provisional President of the Republic from 23 October 1989 to 2 May 1990. His presidency occurred during Hungary's transition from Communism to democratic government.Szűrös served as Speaker of the National Assembly of Hungary from March 1989 to May 1990. In the fall of 1989, as part of an agreement between the Communists and the opposition to establish multiparty democracy, the 1949 Constitution was almost completely rewritten to remove its Communist character. The Presidential Council, the country's Communist-era collective presidency, was dissolved. Under the Constitution, Szűrös became provisional president until the election. Soon after taking office on 23 October he made the official proclamation that Hungary had removed the "People's Republic" from its constitutional name and was now the "Republic of Hungary."
title: Mátyás Szűrös
paragraph_text: In the 1980s green became the color of a number of new European political parties organized around an agenda of environmentalism. Green was chosen for its association with nature, health, and growth. The largest green party in Europe is Alliance '90/The Greens (German: Bündnis 90/Die Grünen) in Germany, which was formed in 1993 from the merger of the German Green Party, founded in West Germany in 1980, and Alliance 90, founded during the Revolution of 1989–1990 in East Germany. In the 2009 federal elections, the party won 10.7% of the votes and 68 out of 622 seats in the Bundestag.
title: Green
paragraph_text: Raymond Triboulet (3 October 1906 – 26 May 2006) was a French politician. He was a leading World War II resistance fighter who helped U.S., Canadian, and British troops invade France, which was then occupied by Nazi Germany.
title: Raymond Triboulet
paragraph_text: The German reunification (German: Deutsche Wiedervereinigung) was the process in 1990 in which the German Democratic Republic (GDR (German: DDR) / East Germany) became part of the Federal Republic of Germany (FRG (German: BRD) / West Germany) to form the reunited nation of Germany, and when Berlin reunited into a single city, as provided by its then Grundgesetz constitution Article 23. The end of the unification process is officially referred to as German unity (German: Deutsche Einheit), celebrated on 3 October (German Unity Day) (German: Tag der deutschen Einheit). Following German reunification, Berlin was once again designated as the capital of united Germany.
title: German reunification
paragraph_text: The Friedrich Ebert Foundation ("German: Friedrich-Ebert-Stiftung; Abbreviation: FES") is a German political foundation associated with the Social Democratic Party of Germany (SPD), yet independent of it. Established in 1925 as the political legacy of Friedrich Ebert, Germany's first democratically elected President, it is the largest and oldest of the German party-associated foundations. It is headquartered in Bonn and Berlin, and has offices and projects in over 100 countries. It is Germany's oldest organisation to promote democracy, political education, and promote students of outstanding intellectual abilities and personality.
title: Friedrich Ebert Foundation
paragraph_text: Brazil won the tournament after beating Italy 3 -- 2 in a penalty shootout at the Rose Bowl in Pasadena, California near Los Angeles, after the game had ended 0 -- 0 after extra time. It was the first World Cup final to be decided on penalties. The victory made Brazil the first nation to win four World Cup titles. Greece, Nigeria and Saudi Arabia made their first appearances at the tournament, as did Russia, following the breakup of the Soviet Union. A united Germany team took part in the tournament, as the country was reunified in 1990, a few months after West Germany's victory in the 1990 World Cup.
title: 1994 FIFA World Cup
paragraph_text: Strategic bombing during World War II began on 1 September 1939 when Germany invaded Poland and the Luftwaffe (German Air Force) began bombing cities and the civilian population in Poland in an indiscriminate aerial bombardment campaign. As the war continued to expand, bombing by both the Axis and the Allies increased significantly. The RAF began bombing Germany in March 1940. In September 1940, the Luftwaffe began targeting British cities in 'The Blitz'. After the beginning of Operation Barbarossa in June 1941, the Luftwaffe attacked Soviet cities and infrastructure. From 1942 onward, the British bombing campaign against Germany became less restrictive and increasingly targeted industrial sites and eventually, civilian areas. When the United States began flying bombing missions against Germany, it reinforced these efforts and controversial firebombings were carried out against Hamburg (1943), Dresden (1945), and other German cities.
title: Strategic bombing during World War II
paragraph_text: Both Germanys were admitted as full members of the United Nations (UN) on 18 September 1973. The two countries eventually merged on 3 October 1990, signifying an end of the Cold war era. Today, Germany is the third largest contributor to the UN budget, after the United States and Japan, with 190 million US dollars, or roughly 8% of the UN budget for the 2010 - 11 biennial budget.
title: Germany and the United Nations
paragraph_text: ``How Am I Supposed to Live Without You ''was supposed to be recorded by the duo Air Supply. But when Arista President Clive Davis asked for permission to change the lyrics of the chorus, Bolton refused, and Davis let go of the song. Subsequently Laura Branigan recorded it as written, and it became the first major hit for the two songwriters. Bolton's own rendition became a worldwide hit in early 1990.
title: How Am I Supposed to Live Without You
paragraph_text: Vilhelm Aubert was born in Kristiania in 1922. He was the older brother of mathematician Karl Egil Aubert, born 1924. Vilhelm Aubert enrolled at the University of Oslo in 1940, the same year as Norway was invaded by Germany as a part of the Second World War. Aubert became a member of the illegal intelligence organization XU.
title: Vilhelm Aubert
paragraph_text: Since the 2006 FIFA World Cup, the internal and external evaluation of Germany's national image has changed. In the annual Nation Brands Index global survey, Germany became significantly and repeatedly more highly ranked after the tournament. People in 20 different states assessed the country's reputation in terms of culture, politics, exports, its people and its attractiveness to tourists, immigrants and investments. Germany has been named the world's second most valued nation among 50 countries in 2010. Another global opinion poll, for the BBC, revealed that Germany is recognised for the most positive influence in the world in 2010. A majority of 59% have a positive view of the country, while 14% have a negative view.
title: Germans
paragraph_text: The leader of the Solidarity movement, Lech Wałęsa, won the first round. However, he did not earn over 50% of the vote, which led to a runoff election. Wałęsa faced Polish - Canadian businessman Stanisław Tymiński in the second round, defeating him easily.
title: 1990 Polish presidential election
paragraph_text: The Gleiwitz incident was a part of a larger operation carried out by Abwehr and SS forces. Other orchestrated incidents were conducted along the Polish-German border at the same time as the Gleiwitz attack, such as a house burning in the Polish Corridor and spurious propaganda. The project was called Operation Himmler and comprised incidents giving the appearance of Polish aggression against Germany. German newspapers and politicians, including Adolf Hitler, had made accusations against Polish authorities for months before the 1939 invasion of organising or tolerating violent ethnic cleansing of ethnic Germans living in Poland. On 1 September 1939, the day following the Gleiwitz attack, Germany launched Fall Weiss (Case White) the invasion of Poland, which precipitated World War II in Europe. Hitler cited the border incidents in a speech in the Reichstag on the same day, with three of them called very serious, as justification for his invasion of Poland. Hitler had told his generals on 22 August, "I will provide a propagandistic casus belli. Its credibility doesn't matter. The victor will not be asked whether he told the truth".
title: Gleiwitz incident
paragraph_text: As the tide of the war turned against Germany and Allied forces invaded the country, most military football sides were disbanded. "LSV Berlin" was lost in September 1944, before the start of the 1944–45 season, its place in the Oberliga being taken by "SG OrPo Berlin".
title: LSV Berlin
paragraph_text: Rolf Jähnichen joined the Christian Democratic Union (East Germany) in 1981. (Unlike its west German counterpart, the East German CDU, as part of the country's National Front alliance was effectively controlled by the country's ruling SED party.) Between 1984 and 1989 Jähnichen was a member of the local council in his hometown of , on the edge of Leipzig. Between 1989 and 1990 he was a member of the CDU party executive.
title: Rolf Jähnichen
paragraph_text: In the final, Germany defeated Argentina 1 -- 0 to win the tournament and secure the country's fourth world title, the first after the German reunification in 1990, when as West Germany they also beat Argentina in the World Cup final. Germany became the first European team to win a World Cup staged in the Americas, and this result marked the third consecutive title won by a European team, after Italy in 2006 and Spain in 2010.
title: 2014 FIFA World Cup
paragraph_text: Juan Mayr Maldonado (born 27 May 1952) is a Colombian photographer and environmentalist currently serving as Ambassador of Colombia to Germany. From 1993 to 1996, Mayr was elected Vice President of the World Conservation Union. In 1998 he became Minister of Environment of Colombia. He has also been president of the United Nations' conference on Biosafety.
title: Juan Mayr
paragraph_text: On national team level West Germany played its first post-war international on 22 November 1950 against Switzerland in Stuttgart, while East Germany played their first game against Poland on 21 September 1952 in Warsaw and its 293rd and last on 12 September 1990 against Belgium in Brussels. The two sides met just once on senior national team level, on 22 June 1974, in a group game of the 1974 FIFA World Cup, held in West Germany. The game in Hamburg, in front of 62,000, was won 1 -- 0 by the guest team courtesy to a goal by Jürgen Sparwasser. East Germany finished the tournament in sixth place while West Germany won the FIFA World Cup. For the East it was the only participation while the West won the 1954 and 1990 editions as well. The two countries never met again at this level despite West Germany frequently requesting a rematch but the East declining, despite strong interest from East German players, coaches and fans. With the German reunification a special game between the two former countries was planned for 21 November 1990 in Leipzig but was cancelled after a fatal shooting of a supporter at a game between FC Sachsen Leipzig and FC Berlin by the police on 3 November. West and East Germany had been drawn against each other for the qualifying of the 1992 UEFA European Football Championship but the latter was withdrawn because of the German reunification.
title: East Germany–West Germany football rivalry
paragraph_text: NATO has added new members seven times since its founding in 1949, and since 2017 NATO has had 29 members. Twelve countries were part of the founding of NATO: Belgium, Canada, Denmark, France, Iceland, Italy, Luxembourg, the Netherlands, Norway, Portugal, the United Kingdom, and the United States. In 1952, Greece and Turkey became members of the Alliance, joined later by West Germany (in 1955) and Spain (in 1982). In 1990, with the reunification of Germany, NATO grew to include the former country of East Germany. Between 1994 and 1997, wider forums for regional cooperation between NATO and its neighbors were set up, including the Partnership for Peace, the Mediterranean Dialogue initiative and the Euro - Atlantic Partnership Council. In 1997, three former Warsaw Pact countries, Hungary, the Czech Republic, and Poland, were invited to join NATO. After this fourth enlargement in 1999, the Vilnius group of The Baltics and seven East European countries formed in May 2000 to cooperate and lobby for further NATO membership. Seven of these countries joined in the fifth enlargement in 2004. The Adriatic States Albania and Croatia joined in the sixth enlargement in 2009, Montenegro in 2017.
title: Member states of NATO

Reasoning steps:
What country did Germany invade? >>>> Poland
who became the president of Poland in 1990 >>>> Lech Wałęsa

Answer: spans: Lech Wałęsa