I'm going to do more reading on the USMRR (US Military Railroads) - an organization of mostly Black railroad workers who not only maintained, repaired, and extended rail lines throughout the campaign (this is sort of an origin of the Pullman porters) but spent about a month early on figuring out the best ways to sabotage and destroy rail lines, and made a how-to guide.
no subject
This is extremely relevant to my interests.