Historical correction

Textbook McDougal Litell "The Americans. Reconstruction to the 21st Century" version 2003, page 539, chapter 16, section 2: "The blitzkrieg tactics worked perfectly. Major fighting was over in three weeks, long before France, Britain, and their allies could mount a defense. In the last week of fighting, the Soviet Union attacked Poland from the east, grabbing some territory."

Ok. Why am I quoting this? Because I would like to clarify something:

1. No. Fights were not over after 3 weeks. War started on September 1 and Warsaw (capital city) signed capitulation on October 2 while last battle with regular Polish forces ended on October 6 (it took place from October 2 to October 6) near city of Kock. From the September 1 to October 2 is over four weeks. I'm sorry but week is important from my point of view

2. "long before France, Britain, and their allies could mount a defense." Ok. Let us break that. Firstly, France started construction of Maginot Line in 1929 and in 1939 their defense was pretty good (or maybe they wanted to defend Belgium? Well... It didn't go well either, did it?)... Secondly, Hitler left on the Siegfried Line (just in front of the Maginot Line) only poorly armed "border protection forces" so even French could win with them... Finally, Marcel Deat (socialist, later fascist) wrote article titled "Why should we die for Gdansk?" and he did it perfectly because in days before his article (or shortly after) took place the biggest demonstration in Paris demanding peace with the III Reich. France never wanted to keep her (France=she?) promises about defending Poland...

3. USSR attacked Poland on September 17, 1939 which is the beginning of the third week of fights. Not the last one. To the end of war with Poland is 20 more day (14 to the end of September and 6 to the end of the last battle with regular Polish forces)...

I'm sorry but I had to do it. I felt bad about that part of my textbook... And yes, of course I know it is not World History, it is only U.S. History but we cannot ignore history. We have to know it throughout.

Thank you for your time :)