The Battle of France in 1940 involved the first large-scale tank-against-tank battles in history. The massive clashes at Stonne, Hannant, and Gembloux involved hundreds of tanks on both sides, yet have faded from memory due to the enormity of the French defeat. This book examines two of the premier opposing tanks of the Wehrmacht and the French Army, the German PzKpfw IV and the French Char B1 bis. With a complete history of the design, development, and deployment of these armored fighting vehicles, the story of these great battles is brought to life in a highly illustrated format.