Black Dispatches: Black American Contributions to Union Intelligence During the Civil War
https://www.cia.gov/library/center-for-the-study-of-intelligence/csi-publications/books-and-monographs/black-dispatches/ [www.cia.gov]
2017-01-30 01:56
“Black Dispatches” was a common term used among Union military men for intelligence on Confederate forces provided by Negroes. This source of information represented the single most prolific and productive category of intelligence obtained and acted on by Union forces throughout the Civil War.
source: grugq