Was WWII....

[Foreigner]

One thing I haven't seen discussed often in "what-ifs": What if France and Britain had taken a more offensive posture in September 1939, followed through the half-hearted Saar offensive and there was a real war instead of "Phoney" one? What if they had probed and then advanced deeper into Germany and in essence called Hitler's bluff? At least then any offensive in the West would have had to grind through those areas, first.

I know there was the Ziegfried line, but a bold enough probe might have revealed how thinly it was manned...