波兰走廊
The situation regarding the Free City and the Polish Corridor created a number of headaches for German and Polish Customs. The Germans requested the construction of an extra-territorial "Reichsautobahn" freeway (to complete the "Reichsautobahn Berlin-Königsberg") and railway through the Polish Corridor, effectively annexing Polish territory and connecting East Prussia to Danzig and Germany proper, while cutting off Poland from the sea and its main trade route. If Poland agreed, in return they would extend the non-aggression pact for 25 years.