“Unfurl Those Colors! is a very important contribution to the field of Civil War and military history. While a number of significant books have been written on the Battle of Antietam and the Maryland Campaign, none have narrowed down a particular phase as this book does.”
—Ted Alexander, Chief Historian at Antietam National Battlefield Park and a Smithsonian Associates tour guide specializing in Civil War sites
“Marion Armstrong has a done a good job examining the generalship at Antietam. This is a terrific book.”
—John Michael Priest, noted author of books on Antietam and teacher at South Hagerstown High School in Boonsboro, Maryland