I was regular army and I remember taking riot training at McGregor Range, New Mexico in 1967.. But we were never deployed...
In 1967, Detroit, President Johnson sent in the Army’s 82nd and 101st Airborne Divisions. The result was 43 dead, 1,189 injured, over 7,200 arrests, and more than 2,000 buildings destroyed.
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My brother was one of them, an MP. He manned a .50 cal, they used recoilless rifles also. They free fired at will.