Fußballclub Union Berlin e. V., generally referred to as 1. FC Union Berlin (German pronunciation: [ˈeːɐ̯stɐ ʔɛfˈtseː ʔuˈni̯oːn bɛʁˈliːn] or simply Union Berlin, is a professional German organization football club based in the region of Köpenick of the district of Treptow-Köpenick of Berlin. The club emerged under the existing name in 1966 however its beginnings can be traced back to 1906, when its predecessor FC Olympia Oberschöneweide was founded. From 2009 till 2019, they contended in the 2. Bundesliga, the second rate of German football. In 2019, after defeating VfB Stuttgart in the relegation play-offs, Union won promotion to the Bundesliga top flight for the very first time in the club s history, for the 2019-- 20 season. During the Cold Battle period, Union was based in the East Berlin sector of the city, signing up with the common German organization structure upon the reunification of the city and the country in 1990. The residence ground Stadion An der Alten Försterei (Stad...