The Bremen-Liga, sometimes also referred to as Oberliga Bremen, is a fifth tier of the German football league system and the highest league in the German state Free Hanseatic City of Bremen. It is one of fourteen Oberligas in German football, the fifth tier of the German football league system. Overview 1947–1963 The league was formed in 1947 as Amateurliga Bremen by thirteen clubs, including four from outside the city-state, in the newly recreated state Free Hanseatic City of Bremen which was then part of the US occupation zone in Germany. The Free Hanseatic City of Bremen and its football association are the smallest in Germany. The state is actually separated in two halves, the cities of Bremen and Bremerhaven are split by the state of Lower Saxony. From the start, the Amateurliga Bremen was a feeder league to the Oberliga Nord which its champion had the option of promotion to. Promotion had to be achieved through a play-off with teams from the Amateurligas of Lower Saxony, Hamburg and Schleswig-Holstein. As such, the league was the second tier of the northern German league system. Promotion to the Oberliga however, became hard to archive for the Bremen champion which only succeeded in 1948 and 1961. This resulted however in a number of back-to-back championships, an oddity for leagues at this level in Germany where direct promotion is the standard. After its second season, the four clubs from Lower Saxony left the league to rejoin their state's league system. To this day, the Bremen league system however continues to host a few clubs from the neighboring state, usually clubs based right at the border of Bremen. The league was expanded to fourteen clubs in its third season, compensating for the lost clubs from Lower Saxony by promoting more local clubs. For the coming seasons, the league stuck mostly with a strength of fifteen clubs. 1963–1974 In 1963, with the introduction of the Bundesliga, the disbanding of the Oberliga Nord and the formation of the Regionalliga Nord, the league fell to tier three, but remained unchanged otherwise, with fifteen clubs as its strength. The champion of Bremen continued to have to play-off for promotion, now to the Regionalliga, with the same opposition as before and the same limited success. The league was increased in size to sixteen clubs in 1973. 1974–1994 After the 1973–74 season, the Regionalliga Nord was disbanded in favor of