In 1984, American Oliver North drafted a contingency plan to implement martial law, and contain citizens in the event of civil unrest.Rex 84 (which stood for readiness exercise) was intended to lay out a plan of action should American citizens oppose involvement in a war, or exhibit civil unrest in response to American policy. It also addressed the possible influx of non Americans from south of the border. North took inspiration from a 1970 plan by then FEMA head Louis Giuffrida, which laid out plans to detain 21 million African Americans in the event of a black uprising .
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