The coup that changed the course of US-Iranian relations
1 Video View·Oct 21, 2026
In the year 2000, the CIA declassified documents
that made it clear American and British agents played
a central role in the 1953 coup d'etat that
led to the ejection of Iran's democratically elected
prime minister and the installation
of a despotic Shah.
Iranian resentment over this tampering
culminated in the 1979 Islamic Revolution,
and the rapport between the US and Iran
has never been the same.
So today, we're going to take a look
at the 1953 coup that ruined
the US-Iran relationship forever.
By 1953, the CIA and British government
had developed a plan to oust Iranian Prime Minister Mosaddegh.
The success of that plan rested on convincing Iran's current
shah, Mohammad Reza Pahlavi, to seize power,
while a fake prime minister, Fazlollah Zahedi, was appointed.
The CIA's Near East and Africa division chief,
Kermit Roosevelt, wrote that his organization wanted
Pahlavi to stand fast as the CIA stirred up popular unrest.
And then as the country lurched toward chaos,
to issue royal decrees dismissing Dr. Mosaddegh
and appointing General Zahedi prime minister.
The CIA wanted to produce such pressure on the Shah
that it would be easier for him to sign the papers required
of him than it would be to refuse.
Officials connected to the agency
held numerous meetings with both Pahlavi
and conservative factions of the Iranian government
to exert their influence.
It took all summer, but the Shah finally agreed to the plan
on August 13.
The CIA may have needed the Shah's approval for their plan
to work, but they weren't in the mood
to wait around for it before getting started.
So along with the British government,
the American intelligence agency began
unrolling a propaganda campaign all over Iran and the world
to discredit Mossadegh's party.
In May of 1953, Kermit Roosevelt paid newspapers and journalists
to publish Gray Propaganda, which
was the CIA's name for spreading lies and unflattering
caricatures of Mossadegh.
One unnamed newspaper was paid $45,000
to aid in bringing the Shah to the side of Western interests.
As Roosevelt later wrote, the money
was granted in the belief that this would make the Shah's organ
amenable to our purposes.
You can pause the video now and put your Shah's organ
jokes in the comments below.
Anyway, according to author Stephen Kinzer,
of All the Shah's Men, An American Coup
and the roots of Middle East terror.
The anti-Mossadegh messaging included
claims that he was a Jew, a homosexual, a British agent,
anything they thought would outrage people.
The demand for these stories was so high
that CIA officers in Washington, DC
were contracted to write new articles.
The CIA's efforts paid off, and the world
braced for a revolution it believed
to be brought on solely by Iranian citizens.
One Associated Press release stated,
unofficial reports are current to the effect
that leaders of the plot are armed with two decrees
of the Shah, one dismissing Mossadegh
and the other appointing General Zahedi to replace him.
As if all that wasn't cartoonishly evil enough,
declassified documents later showed
that the CIA hired Iranians to pose
as communists in the months leading up to the coup.
These fake communists threatened religious leaders
and executed bombings, creating a further divide
between Iran's Islamic factions and Mossadegh's government.
Numerous leaders were targeted.
One cleric's home was literally blown up.
The reasoning behind this move was simple.
At the time, the tension between the US and Soviet Union
was the biggest international conflict in the world.
The CIA and British government wanted
Mossadegh's nationalist agenda thwarted
by fabricated connections to fanatical communists.
The CIA worked every possible angle
to ensure its plan would come to fruition,
even digging deep into Iran's complicated political history
to find support.
The man chosen to serve as prime minister
after Mossadegh, Major General Fazlollah Zahedi
was a royalist who pledged allegiance
to the Iranian monarchy.
Zahedi was a longtime minister whose affiliations
with the royalist faction of the Iranian military
were used to the CIA's advantage.
Again, it worked like a charm.
When the coup eventually occurred on August 19,
much of the strong arming and physical acceleration
was acted out by the royalist troops
aligned with Zahedi and the Shah.
As a bonus, the CIA also knew that Zahedi
had a contentious relationship with Western powers,
and they were able to use his reputation to distance
themselves from the coup.
In an article on August 20, the New York Times
predicted Zahedi's ascendancy will probably
be met with mixed feelings by the Western world.
Views like this created plenty of room
for plausible deniability
on the part of the agency.
On April 16, 1953, the CIA's chief of the Iran branch
for the Near East and Africa Division
wrote a memo to Kermit Roosevelt, which
included a list of forces which will play a role in any effort
to replace Mossadegh and to establish a stable government
and evaluation of their attitudes.
One of the forces listed is Sumka, Iran's nationalist
political party at the time.
The officer, John Waller, described
Sumka as small in size but capable of producing
fanatical street fighters.
Sumka, founded in 1951, worshipped and mimicked
the Nazi Third Reich, and its members
were responsible for multiple street altercations
all over Tehran.
By 1952, reports were circulating
that both the US and Britain supported Sumka.
Even though the group had no more than 300 members
at its height, it's possible the CIA backed
its efforts financially.
As the propaganda spread and mayhem escalated,
it became obvious to Mossadegh that forces were attempting
to overthrow his government.
On August 15, with advance warning,
Mossadegh was able to prevent the coup from happening
by convincing the Iranian military
to remain loyal to him.
The Shah fled to Baghdad, and Zahedi
went into hiding while Mossadegh's forces detained
dozens of conspirators.
On August 18, Kermit Roosevelt received a wire
from CIA Washington headquarters telling
him to call the coup off.
It read, operation has been tried and failed,
and we should not participate in any operation
against Mossadegh which could be traced back to US.
Operations against Mossadegh should be discontinued.
Roosevelt's answer was a short one.
No, we're not done here.
A rogue CIA agent toppling foreign governments
even while being ordered not to?
Yikes.
Despite the cold feet on the part of the CIA brass,
the operation succeeded.
The day after Roosevelt received the wire, August 19,
Mossadegh was run out of Tehran, and headlines
all over the world celebrated the return of Shah
Pahlavi and the freshly appointed Prime Minister
Zahedi.
The coup was a victory, courtesy of massive crowds possibly
placed in the city through CIA maneuvering.
On August 20, CIA official Frank Wisner
released an internal memo congratulating
those who worked on Operation Ajax for their efforts.
I am sure that you are aware of the exceptionally heavy volume
of traffic which this operation has necessitated, he wrote.
Two days after the coup succeeded,
both the CIA and British intelligence agency
sent $5 million
to Zahedi's regime.
From the beginning, securing an oil agreement
with Zahedi and Shah Pahlavi was the prime aim of the coup.
And in that regard, the operation
was a massive success.
It was actually Britain that first placed the seed
for the Iran coup in 1952.
They were worried about Iran's plans
to nationalize its oil industry.
The British government reached out to America
for help planning and implementing
the coup, which was designed to get rid
of the nationalist figure Mossadegh, who insisted
that oil should be nationalized.
In a declassified CIA document, operative John Waller
made it clear.
The US and Britain felt their interests
were more important than Iran's.
A new proposal agreement must at least
appear to be more generous than any previous one.
It must not insist upon compensation
for years in which concession would have covered, he wrote.
By 1954, the year after the coup,
the privately owned Anglo-Iranian oil company
resumed operations without fear of nationalization.
It would go on to become British Petroleum, or BP,
which still exists to this day.
While Zahedi was promoted as Mossadegh's replacement,
It was really Shah Pahlavi who retained power over Iran.
He ruled like a dictator for the next 25 years.
And according to NPR's Ramtin Erabi,
Western powers, including the US,
didn't really care because he gave them
easy access to Iran's oil.
Mossadegh was erased from Iranian history.
And the prime minister's legacy was tainted
by disinformation campaigns.
An autocratic ruler, matched with interference
from other nations, led to a rise
in religious and political extremism in Iran.
As author Stephen Kinzer told NPR,
the 1979 Islamic Revolution brought to power
a fanatically anti-American regime that
has spent more than 30 years working
to undermine American interests all over the world.
The US-Soviet tension was the backdrop for this coup,
and it fit into the ideological struggles
between the Soviet-influenced East and American-British-backed
West.
The American government knew that success with the Iran coup
would give it an edge over the Soviet Union.
According to historian Mark Gasiorowski,
The coup really reinforced the Cold War polarization
of the region.
Of course, that's the reason the United States did it.
They did it because they were afraid of communist influence
in Iran.
However, the ultimate results were a bit of a mixed bag.
Not only did the coup lead to more escalated tension
between the US and the Soviet Union,
but they also gave the Soviet Union ammunition
against its Western nemesis.
Moreover, as a major influence on the rest of the Middle East,
Iran's political climate had a profound effect
on other countries around it.
Gasiorowski sees the 1953 coup as a step
toward opening the region up to radicalization and extremism.
What the coup did was to take out
the moderate secular element of Iranian politics
and enabled radical Islamists and radical leftists
to emerge as key opposition factions in place of it
in the 1960s and 70s.
Since the 1979 Islamic Revolution,
the coup has been invoked by Iranian leaders
when outside countries, particularly Western ones,
attempt to interfere in the country's politics.
Mossadegh has also become an anti-colonial icon in Iran,
viewed as a leader who was not afraid to stand
against Western interests.
Today, some experts believe that a failed coup
may have led to a drastically different and far less
interventionist US foreign policy in the 1950s and 60s.
But it didn't fail.
The CIA went on to attempt coups in countries
all over the world.

