In the West, the Germans have moved fast into Belgium, taking the fortresses of Liege and Namur. The BEF is still mobilizing, and will not land in France for another two weeks at the earliest. The French are poised for a major offensive along the borders of Alsace and Lorraine, with the hope of forcing the German army to weaken any move through Belgium.
Four French armies ranging in order from the Swiss border to the north are committed to the offensive. The 5th Army is still being held pending the initial results of that offensive, and with an eye on the German push in Belgium.
The Belgians face a critical decision: attempt to hold in Brussels and Antwerp, or make a fighting withdrawal to the southwest and west, to join up with hoped for British and French help.
[note: MP9090 is already way ahead of the historical advance in Belgium. The historical first meeting of the BEF with the Germans at Mons looks to be seriously in doubt.
I'm going to do a stab at the Plan 17 offensive along the French-German border, just for the sake of seeing how the scenario stacks up with history in that regard.]
