On 8 October , after an initial period of military administration , Germany directly annexed western Poland and the former Free City of Danzig and placed Placing the remaining block of territory under the administration of the newly established Building General Government .

The city of Danzig ( Gdańsk ) was captured Arrest by the State of the Teutonic Order on 13 November 1308 , resulting in a massacre of its inhabitants and marking the beginning of tensions between Poland and the Teutonic Order .