I extend my sincerest gratitude to all who have helped in the completion of this thesis. The patience and understanding of everyone in my family, especially my wife Michele, played an integral role in bringing this project to fruition. My daughter, Claire, proved a source of constant encouragement. My daughter Jocelyn, who accompanied me to the National Archives and Carlisle Barracks, simply made most of this possible. To all of the faculty and graduate students at the University of Texas at Arlington who indulged me in my ramblings about World War II tank development I extend my thanks for your patience. Fellow students Kyle Carpenter, Justin Dellinger, Rob Fuller, Bryan Garrett, Pavel Goral, and Jonathan Speed deserve specific mention for...