The M113 and M113A1 Armoured Personnel Carrier. The M113 family includes more than 80,000 vehicles worldwide across more than 40 variants. As one of the most widely used combat vehicles in the world, it plays a role in the militaries of at least 44 countries. This book looks at the early history of this iconic Cold War warrior. First entering service in 1960, and until the advent of the Bradley Fighting Vehicle decades later, the M113 and its updated successors served as the standard armoured personnel carrier of the US Army for much of the second half of the twentieth century. Based almost entirely on primary source documents and lavishly illustrated with previously unpublished images, well-known US vehicle historian David Doyle reveals the early history of the M113 APC, one of the most numerous and versatile of all armoured fighting vehicles.