This book is the first publication that documents and displays copies of the drawings, paintings and samples submitted of every officially authorized shoulder sleeve insignia approved in 1918-1919 by General Headquarters, American Expeditionary Forces, by Command of General John J. Pershing as Commander-in-Chief. Covered are the authorized shoulder sleeve insignia of General Headquarters, Armies, Corps, Divisions, support organizations of the Services of Supply, special units, and Marine Corps Brigades. The author provides a background and brief history of Americas entry into World War I, the formation, lineage and campaign