During the Second World War, a special commando unit was formed in Britain from Jewish refugees from Germany, Austria and other parts of occupied Europe. Many of the men who joined this unit had lost their families, their homes and, as you'll hear, had relatives imprisoned in concentration camps. Trained in advanced combat and counterintelligence they fought with a special zeal often volunteering for the most dangerous assignments. The risks these men took was enormous. If they were captured by the Nazis and had their true identities been discovered then their fate would certainly have been death. Leah Garrett is a professor at Hunter College and has recently published X Troop: The Secret Jewish Commandos Who Helped Defeat the Nazis. She explains how this unusual unit came to be formed, the often oversized impact they had on the battlefield and some of the incredible individual stories of heroism of the men of X Troop.