In the shadows of Nazi occupation, a secret war was being fought.

In occupied France, resistance fighters delayed an elite SS Panzer division long enough to change the outcome of D-Day. In Poland, underground engineers secretly analyzed a crashed German V-2 rocket and flew its secrets to Britain. In Yugoslavia, Tito's Partisans forced Germany to divert entire divisions from the Eastern Front.

These are not the sanitized stories of wartime heroism ? they are raw, dangerous, and often heartbreaking accounts of ordinary people who chose to fight when everything was at stake.

Drawing on declassified intelligence files, firsthand survivor accounts, and decades of historical scholarship, Shadow Armies brings together twenty gripping true stories from three of the most dangerous resistance theaters of World War II.

The shadow fighters of history have waited long enough to be seen.