Pahlavi dynasty
The Imperial State of Iran, the totalitarian government of Iran during the Pahlavi dynasty, lasted from 1925 to 1979. During that time, two monarchs — Reza Shah Pahlavi and his son Mohammad Reza Shah Pahlavi — employed secret police, torture, and executions to stifle political dissent. The Pahlavi dynasty has sometimes been described as a "royal dictatorship", or "one-man rule".