Browsing by Subject "espionage"

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    Quelling the Camp Douglas Conspiracies
    (Chicago History Museum, 2015-12) Towne, Stephen E., 1961-
    During the American Civil War, U.S. Army detectives spied on Confederate agents in Chicago and the Midwest who aimed, in collaboration with Northern sympathizers, to subvert the federal government. In 1864, army detectives and spies succeeded in infiltrating plots to release Confederate prisoners-of-war held in Camp Douglas, near Chicago. Military commanders broke up the plots, arrested some of the leaders, and tried them by military commission.