Compelling evidence exists to suggest that Khmer Rouge leaders were determined to hunt down senior members of the pre-1975 ecclesiastical hierarchy, but other factors also worked against the Buddhist order. Buddhism in a Dark Age outlines a three-phase process in the Khmer Rouge treatment of Buddhism: bureaucratic interference and obstruction, explicit harassment, and finally the elimination of the obdurate and those close to the previous Lon Nol regime. The establishment of a separate revolutionary form of sangha administration constituted the bureaucratic phase. The harassment of monks, both individually and en masse, was partially due to the uprooting of the traditional monastic economy in which lay people were discouraged from feeding economically unproductive monks. Younger members of the order were disrobed and forced into marriage or military service. The final act in the tragedy of Buddhism under the Khmer Rouge was the execution of those monks and senior ecclesiastics who resisted.