Complex sentence: After the war, the four occupation forces established their own speed limits in each zone until the separate East German and West German republics were established in 1949; initially, the Nazi era speed limits remained in both East and West Germany.
Split into simpler sentences: After the war, the four occupation forces established their own speed limits in each zone until the separate East German and West German republics were established in 1949. Initially, the Nazi era speed limits remained in both East and West Germany.