The German Tiger heavy tank was a monster of a machine that dominated the battlefields of Europe. One of the most feared weapons of World War II, the Tiger gained an aura of invincibility that was only shattered by the introduction of the Sherman Firefly during the summer of 1944. Designed by the British to combat the Tiger, the Sherman Firefly was based on the American M4A4 Sherman, but was fitted with a powerful 17-pounder gun which made it a deadly opponent. This book describes the design and development of these two opponents, analyzing their strengths and weaknesses, assessing their tactics, weaponry and training. Gunsight artwork puts the reader 'inside' the tanks during famous battle scenarios, in a victory of superior Allied numbers, tactics and engineering.