Thomas Allen, "Intelligence in the Civil War (2006)".
Publisher: Central Intelligence Agency | ISBN: 1929667124 | 2006 edition | PDF | 50 Pages | 2.36 MB
Though much has been written about the Civil War itself, little has been written about the spy war that went on within.The chronicling of Civil War intelligence activities challenges historians because of the lack of records, the lack of access to records, and the questionable truth of other records. Judah P. Benjamin, the Confederacy’s Secretary of State, burned all the intelligence records he could find as federal troops entered Richmond. Union intelligence records were kept sealed in the National Archives until 1953.