German order of battle for the invasion of Poland

It controlled everything related to the Heer: Personnel, Training, Recruitment, Armaments, Transportation, Supplies, Medical Services, etc.

Armee was based in East Prussia General der Artillerie Georg von Küchler 4.

Armee was based in southern Silesia General der Artillerie Walter von Reichenau 14.

Wilhelm Ritter von Leeb[af] Heeresgruppe C's only duty was to protect the western border of Germany from any French attacks until stronger units could be sent back from the east.

Armee was based along the French border General der Infanterie Erwin von Witzleben 7.

Armee was based along the French border General der Artillerie Friedrich Dollmann Luftwaffe[6][5] - Oberbefehlshaber der Luftwaffe Generalfeldmarschall Hermann Göring On August 30 the Polish Navy, realizing what was about to happen, sent three destroyers (Błyskawica, Grom, and Burza) to the UK.

Later, the submarines Orzeł and Wilk also made it to the UK, while the Sęp, Ryś and Żbik, sought internment in Sweden.