Chamaedrys said:
Well, the Poles would have had a chance if their French and British allies had helped them.
Sigh, sorry I don't agree here Chamaedrys, certainly not in terms of ability to affect the outcome from a material standpoint.
The French ability to pursue offensive war was limited. Indeed, France's army and doctrine was based on defense. That is why the Maginot line was built. When preparing war plans, they were relying on the Belgian and perhaps Dutch army to close the army strength gap, and their main plan was the Dyle plan. Using this, France would be supplemented by 20 divisions or so from Belgium and some from Holland.
If you look on paper, France had a lot of tanks of good quality, but they weren't really capable of offensive warfare. Their tanks weren't built into divisions, but were scattered as infantry support. More important, the army was green (all were), but was imbued with a defensive mentality. They ddin't want to move beyond artillery range. They hadn't learned the German offensive doctrine and couldn't have executed it in 1939. France was thinking in terms of WWI, wehre offensives were dificult without overwhelming superiority. Without a doctrine of using tanks and planes, an offensive would have been WWI 'like'.
Poland fought very well, but they were simply overwhelmed. There defensive plans were based on defending a smaller border. Once Germany took over Czechoslovakia, their border was enormous. It was late in the game -- perhaps a purely objective defense of pulling back to Warsaw would have been more successful, but it isn't hard to understand that Poland tried to defend the bulk of their country. Their war plans, devised many years earlier, were based on having Czechoslovakia still independent.
Guderian's breakthrough in the North was really decisive. He got into trouble once, but it was tough for Poland to defend such a large border. Of course, they hadn't dealt with a blitz doctrine, and the combined tanks under a skilled commander with initiative like Guderain was very hard to stop.
The Russian back-stab hurt, but Germany had them pretty much beaten by that time. Don't take this as an indictment of the Polish military or troops, but the Germans were stronger with new tactics, more resources, and generally better equipment.
Given the speed of Poland's fall, an attack by France is hard to predict. Wargaming shows that they really couldn't have done much -- not with their offensive deficiencies. However, would Germany have reacted with a troop reduction? That is, we can wargame, but we don't know how the real life commanders would act. So, an attack by France may have ahd psychological impacts, but from a purely military standpoint, Poland was overmatched.
Best wishes,
Breunor