Investigating the English role in the March 3, 1921 coup détat

The Iranian strategic situation has always received the attention of foreign powers including England, Russia and America and these powers; in order to reach their goals in the Middle East have always striven to utilize this situation. This research seeks to answer the question of how the English state interfered in and performed the March 3, 1921 coup d'état. The English failure in implementing the 1919 Treaty was considered a beginning for the devising the March 3, 1921 coup d'état. From the beginning of the March 3, 1921 coup d'état and after that, the English government intended for a strong government in Iran so to carry out the 1919 Treaty in another form in direction of its own benefits in Iran. This research has been conducted based on documents and evidence and via utilization of descriptive-comparative methods. The findings reveal that the main goal of the English government for endorsing the March 3, 1921 coup d'état was to establish an authoritative and centralized state and create a security belt for preventing the influence of Communism into Iran.