This new book is most likely the first published on the organization and markings of American armor during the years prior to the Second World War. A subject that has long been ignored, the book reveals, through text, drawings and photos, the colorful markings used by American armored units during this period. Starting with the American Expeditionary Force and the Tank Corps, it works its way through the Infantry-Tank units, mechanized cavalry, the first tour armored divisions and even the GHQ tank battalions, Ever wondered what all of these geometric figures on the M2 series light tanks meant? This book will clear up that mystery. What unit does the tank belong to, what year was the photograph taken? The answers will lie within the pages of this book.