Mitchell A. Yockelson is a military historian and archivist who has received the Army Historical Foundation's Distinguished Writing Award. His books include Borrowed Soldiers: Americans under British Command, 1918 and Forty-Seven Days: How Pershing's Warriors Came of Age to Defeat the German Army in World War I, as well as introductory biographies of Ulysses Grant and Douglas MacArthur. A former professor at the U.S. Naval Academy, he is an investigative archivist with the National Archives and Records Administration. He lives in Annapolis, Maryland.