Original sentence: Following the annexation of Austria and the Sudetenland, Germany in October 1938 urged the territory's cession to Germany.In October 1939 Gdansk, together with the rest of the Polish Pomrania to the south and west became the German Reichsgau (administrative district) of Danzig-West Prussia (Danzig-Westpreussen).Nazi regime murdered the Polish postmen defending the Polish Post Office after the COF, this is one of the first war crimes during WWII.Not surprisingly, Poland refused to accept this threat and, on September 1, 1939, Nazi Germany invaded Poland, initiating World War II.On the Sep 2 Germany officially annexed the Free City.Other Polish soldioers defended Westerplatte stronghold surrendered after 7-day fighting
Edited sentence: Following the annexation of Austria and the Sudetenland, Germany in October 1938 urged the territory's return to Germany.In October 1939 Danzig, together with the rest of the "Polish Corridor" to the south and west became the German Reichsgau (administrative district) of Danzig-West Prussia (Danzig-Westpreussen).Not surprisingly, Poland refused to accept reunification and, on September 1, 1939, Nazi Germany invaded Poland, initiating World War II.On the Sep 2 Germany officially annexed Danzig.Other defended point,Westerplatte surrendered after 7-day fighting