Complex sentence: Neisse line after World War II. Parts of the planned autobahn from Berlin to Königsberg (the "Berlinka") were completed up to Stettin (Szczecin) on 27 September 1936, after the war incorporated as the A6 autostrada of the Polish motorway network.
Split into simpler sentences: Neisse line after World War II. Parts of the planned autobahn from Berlin to Königsberg (the "Berlinka") were completed as far as Stettin (Szczecin) on 27 September 1936. Later, after the war, they were incorporated as the A6 autostrada of the Polish motorway network.