Members of the MONATIO (Mouvement National) group wearing black uniforms drive 17 April 1975 atop jeeps through a street of Phnom Penh, the day Cambodia fell under the control of the Communist Khmer Rouge forces. The Cambodian capital surrendered after a three and a half-month siege of Pol Pot forces. (Photo by Sven Erik SJOBERG / TT NEWS AGENCY / AFP) / Sweden OUT (Photo by SVEN ERIK SJOBERG/TT NEWS AGENCY/AFP via Getty Images)