White Eagles: A Panzer Grenadier Supplement BookExpansion

From BoardGameGeek:

White Eagles is a 64-page book supplement to the Panzer Grenadier series, focused on the battles of September 1939, between Poland's defenders and the German and Soviet invaders. There are 40 new scenarios depicting both sides on the attack, battles of cavalry against cavalry, and even a tank battle or two. Plus of course background articles on the armies and weapons involved. This module is not playable by itself, but requires ownership of Eastern Front and Road to Berlin to enjoy all of the scenarios. White Eagles includes 165 die-cut and mounted playing pieces. Almost all of them represent Polish forces: tanks, cavalry, armored cars, infantry, machine gun, mortar, anti-tank, artillery and of course leaders. The book's format is the same as our very popular Sinister Forces and Fronte Russo books. This game is part of the Panzer Grenadier series Expands: Panzer Grenadier Expanded by: First Axis: Slovakia at War 1939-1945 - A Panzer Grenadier Scenario Book