Ergo Sum
Prince
I think Germany would've thought twice before invading Czech Republic. Probably wait and do a coordinated Polish-Czech invasion at the same time.
Question is, would the pact between Poland and UK&France still happen? Not sure when the timedate for that was.
Ehh, although things would've been different the fact of the matter is that France still failed to invade Germany after the latter took over Czechoslovakia AND invaded Poland, not likely that a Polish-Czech alliance could have coaxed them into action at that point.
Also I'd make fun of the masturbatory nationalism in this thread but that's been done already...