This book charts the development of military vehicles from steam-powered tractors to modern main battle tanks. The story reveals how such vehicles have changed the way wars are fought, either by increasing the speed and volume of logistics or troop deployments, or through the application of mobile firepower. The narrative explains key technical innovations from World War I, through the inter-war years to World War II, the Cold War and beyond. It pays homage to outstanding designs and those that are remembered with fondness, including the M3 Lee/Grant, T-34, Panther, Tiger, M1 Abrams, Chieftain and M4 Sherman tanks; the Bren Gun Carrier, the Willys 'Jeep', the Dodge truck; through to the modern 'Humvee' and Stryker, and many more.