Race Riots U.S.A. pic: 27th July1967. Detroit, Michigan. Tough looking Michigan National Guardsmen with fixed bayonets on the streets during race riots in the city. [Getty Images]

Race Riots, U,S,A, pic: 27th July1967, Detroit, Michigan, Tough looking Michigan National Guardsmen with fixed bayonets on the streets during race riots in the city (Photo by Rolls Press/Popperfoto via Getty Images/Getty Images)

Popperfoto Rolls Press/Popperfoto