The maps of the German Polish Campaign show the directions of the attack on Poland and the points of origin. Beginning on September 1, 1939, the Cerman offensive in Poland, called Operation Fall Weiss, was conducted by two army groups. Army Group North (AGN) was commanded by Fedor von Bock and was composed of the 3rd and 4th Armies; both would thrust into Poland from the north in a three-pronged movement, with the 3rd Army launching their offensive from East Prussia and the 4th from the German Northeast (eastern Pomerania). Led by Gerd von Rundstedt, Army Group South (AGS), which consisted of the 8th and 10th Armies, would push deep into Polish territory in the direction of Warsaw, the capital, carrying out encircling maneuvers as they went.
Below: maps of the German invasion of Poland as planned in Fall Weiss
Below: division of Poland in two parts after its defeat in the hands of the Germnas and Russians