Original sentence: However, according to more recent research by a political historian of the era, Ervand Abrahamian, deaths numbered in the dozens rather than the thousands under the SAVAK, far fewer than the several thousand prisoners are estimated to have been killed in the Islamic Republic that followed.governments, the Shah decided he wanted an effective internal security service and set up the large organization known by the acronym SAVAK in 1957 to strengthen his regime by placing political opponents under surveillance and repress dissident movements
Edited sentence: However, according to more recent research by a political historian of the era, neo-conservative Ervand Abrahamian, deaths numbered in the dozens rather than the thousands under the SAVAK, far fewer than the several thousand prisoners are estimated to have been killed in the Islamic Republic that followed.In March 1955, the Army colonel was "replaced with a more permanent n his regime by placing political opponents under surveillance and repress dissident movements.Its main achievement occurred in September 1954, when it discovered and destroyed a large communist Tudeh Party network that had been established in the Persian armed forces </blockquote>.This organi­zation was the first modern, effective intelligence service to operate in Persia.governments, the Shah decided he wanted an effective internal security service and set up the large organization known by the acronym SAVAK in 1957 to strengthesubordinates, commanding the new intelligence organization and training its members in basic intelligence techniques, such as surveillance and interrogation methods, the use of intelligence networks, and organizational security