Helmut Josef Michael Kohl was a German politician who served as chancellor of Germany from 1990 to 1998 and, prior to German reunification, as the chancellor of West Germany from 1982 to 1990. He was leader of the Christian Democratic Union (CDU) from 1973 to 1998 and oversaw the end of the Cold War, the German reunification and the creation of the European Union (EU). Kohl’s 16-year tenure is the longest of any German chancellor since Otto von Bismarck, and is the longest for any democratically elected chancellor of Germany.