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Intelligence Agency
MI6
Secret Intelligence Service (SIS)
Founded
1909
Country
United Kingdom
HQ
Vauxhall Cross, London
On Record
2
UK foreign intelligence collection and covert operations. Works alongside GCHQ and MI5 under the Joint Intelligence Committee.
2 confirmed Cold War
■ Operations
- Cold War · Iran, United Kingdom CONFIRMED 2026
Operation Ajax
A joint CIA-MI6 operation to overthrow Iran's democratically elected Prime Minister and restore the Shah to absolute power.
- Cold War · Iran CONFIRMED 1953
Operation Boot (Anglo-American Coup, Iran)
MI6 and CIA jointly orchestrated the overthrow of Iran's democratically elected Prime Minister Mohammad Mosaddegh in 1953, restoring Shah Mohammad Reza Pahlavi to power.