Operation TPAJAX
E503948
Operation TPAJAX was the covert CIA- and MI6-backed operation that orchestrated the 1953 coup d'état overthrowing Iranian Prime Minister Mohammad Mossadegh and restoring greater power to Shah Mohammad Reza Pahlavi.
All labels observed (1)
| Label | Occurrences |
|---|---|
| Operation TPAJAX canonical | 1 |
How this entity was disambiguated
This entity first appeared as the object of triple T5215813 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Operation TPAJAX Context triple: [1953 Iranian coup d'état, alsoKnownAs, Operation TPAJAX]
-
A.
Operation Pegasus
Operation Pegasus was a 1968 U.S.-led relief operation during the Vietnam War that broke the North Vietnamese siege of the Khe Sanh combat base.
-
B.
Operation Tuleta
Operation Tuleta was a British police investigation into alleged computer hacking and related privacy breaches linked to the wider News International phone hacking scandal.
-
C.
Operation Aqueduct
Operation Aqueduct was a series of U.S. nuclear weapons tests conducted during the Cold War as part of the broader American nuclear testing program.
-
D.
Operation Phalanx
Operation Phalanx was a specific U.S. nuclear weapons test series conducted as part of the broader United States nuclear testing program.
-
E.
Operation Opera
Operation Opera was a 1981 Israeli Air Force airstrike that destroyed Iraq’s Osirak nuclear reactor to prevent Saddam Hussein’s regime from developing nuclear weapons.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Operation TPAJAX Target entity description: Operation TPAJAX was the covert CIA- and MI6-backed operation that orchestrated the 1953 coup d'état overthrowing Iranian Prime Minister Mohammad Mossadegh and restoring greater power to Shah Mohammad Reza Pahlavi.
-
A.
Operation Pegasus
Operation Pegasus was a 1968 U.S.-led relief operation during the Vietnam War that broke the North Vietnamese siege of the Khe Sanh combat base.
-
B.
Operation Tuleta
Operation Tuleta was a British police investigation into alleged computer hacking and related privacy breaches linked to the wider News International phone hacking scandal.
-
C.
Operation Aqueduct
Operation Aqueduct was a series of U.S. nuclear weapons tests conducted during the Cold War as part of the broader American nuclear testing program.
-
D.
Operation Phalanx
Operation Phalanx was a specific U.S. nuclear weapons test series conducted as part of the broader United States nuclear testing program.
-
E.
Operation Opera
Operation Opera was a 1981 Israeli Air Force airstrike that destroyed Iraq’s Osirak nuclear reactor to prevent Saddam Hussein’s regime from developing nuclear weapons.
- F. None of above. chosen
Statements (48)
| Predicate | Object |
|---|---|
| instanceOf |
CIA operation
ⓘ
MI6 operation ⓘ coup d'état ⓘ covert operation ⓘ |
| alsoKnownAs |
Operation Ajax
NERFINISHED
ⓘ
TP-AJAX NERFINISHED ⓘ |
| codeNameOf | US-UK plan to overthrow Mohammad Mossadegh ⓘ |
| country | Iran ⓘ |
| date | 1953 ⓘ |
| directedBy | Kermit Roosevelt Jr. NERFINISHED ⓘ |
| disclosedBy | declassified CIA documents ⓘ |
| installed | Fazlollah Zahedi as Prime Minister of Iran NERFINISHED ⓘ |
| involved |
cooperation between US and British intelligence services
ⓘ
psychological warfare operations ⓘ |
| keyFigure |
Fazlollah Zahedi
NERFINISHED
ⓘ
Shah Mohammad Reza Pahlavi NERFINISHED ⓘ |
| legalStatus | covert ⓘ |
| location |
Iran
NERFINISHED
ⓘ
Tehran NERFINISHED ⓘ |
| longTermConsequence |
contributed to conditions leading to the 1979 Iranian Revolution
ⓘ
delegitimization of the Pahlavi regime among many Iranians ⓘ increased anti-American sentiment in Iran ⓘ |
| method |
bribery of Iranian politicians
ⓘ
organization of street protests ⓘ political manipulation ⓘ propaganda campaign ⓘ support for military units loyal to the Shah ⓘ |
| motivation |
containment of Soviet influence
ⓘ
protection of Western oil interests in Iran ⓘ |
| opposedBy | supporters of Mohammad Mossadegh ⓘ |
| organizedBy |
Central Intelligence Agency
NERFINISHED
ⓘ
Secret Intelligence Service NERFINISHED ⓘ United Kingdom NERFINISHED ⓘ United States NERFINISHED ⓘ |
| partOf | Cold War covert operations ⓘ |
| precededBy | nationalization of the Anglo-Iranian Oil Company ⓘ |
| relatedTo |
1953 Iranian coup d'état
NERFINISHED
ⓘ
Anglo-Iranian Oil Company NERFINISHED ⓘ |
| result |
establishment of pro-Western government in Iran
ⓘ
overthrow of Mohammad Mossadegh ⓘ restoration of greater power to Shah Mohammad Reza Pahlavi ⓘ strengthening of the Pahlavi monarchy ⓘ |
| supportedBy |
CIA Near East Division
NERFINISHED
ⓘ
MI6 Tehran station NERFINISHED ⓘ elements of the Iranian military ⓘ some Iranian clerics ⓘ |
| target | Mohammad Mossadegh NERFINISHED ⓘ |
| timePeriod | August 1953 ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Operation TPAJAX Description of subject: Operation TPAJAX was the covert CIA- and MI6-backed operation that orchestrated the 1953 coup d'état overthrowing Iranian Prime Minister Mohammad Mossadegh and restoring greater power to Shah Mohammad Reza Pahlavi.
Referenced by (1)
Full triples — surface form annotated when it differs from this entity's canonical label.