Panzer Grenadier: The Deluge - Poland 1939

from Avalanche Press:

The Deluge is a Panzer Grenadier expansion book focused on the battles of September 1939 between Poland's defenders an the German invaders. There are 40 new scenarios featuring battles of cavalry against cavalry, tank battles and plenty of action featuring armored trains. 

The Polish Campaign of 1939, with 40 scenarios and 165 die-cut playing pieces.