The German national football league contains two divisions, the First Bundesliga and the Second Bundesliga. After the reunification of Germany in 1990, a union of the football associations of west and east became reality. So, the First Bundesliga in the 1991/92 season was expanded to 20 teams to integrate the two top clubs from East Germany. The former East German football league was downgraded into a regional division. Presently, the First Bundesliga, usually called just "Bundesliga", consists of 18 teams. Each team plays two games against all the other league rivals during the season, one game at home and one game away.