In September 1944 Hitler ordered an attack on Gen. George Patton's Third Army, which was deep inside France making for the Rhine and threatening the German industrial heartland beyond. The ensuing battle near Arracourt--the U.S. Army's largest tank-versus-tank clash until the Bulge--went badly for the Germans, who committed their armor piecemeal and whose offensive was shattered in a series of intense, close-range tank duels with the Americans. Armor expert Steven Zaloga deftly reconstructs the battle and shows how American Sherman tanks bested superior German Panthers.