Dissociation is a psychological defense mechanism where a person disconnects from their identity or memories. The document discusses how dissociation was used in CIA mind control experiments through Project MKULTRA and its subprojects like Project MONARCH. These projects aimed to program subjects through torture, drugs, hypnosis and trauma to perform tasks or have alternate personalities through severe dissociation. Specifically, it discusses "BETA" and "DELTA" programming to create assassins or sex slaves that could kill or perform tasks on command before becoming amnesic to the event. Declassified CIA documents confirm experiments using hypnosis and post-hypnotic suggestions to induce amnesia and program subjects to harm others or themselves.