A short historical past of how many years of distrust and dangerous blood led to open warfare

With U.S. bombs raining down on Iran and Tehran’s leaders responding by hitting targets throughout the Persian Gulf and proscribing transit by means of the Strait of Hormuz, it’s truthful to recommend that the current second represents a low in relations between the 2 international locations.

However the dangerous blood isn’t new: The U.S. and Iran have been in battle for many years – at the least since the U.S. helped overthrow a democracy-minded prime minister, Mohammed Mossadegh, in August 1953. The U.S. then supported the lengthy, repressive reign of the Shah of Iran, whose security services brutalized Iranian citizens for many years.

The 2 international locations have been notably hostile to one another since Iranian college students took over the U.S. Embassy in Tehran in November 1979, leading to economic sanctions and the severing of formal diplomatic relations between the nations.

Since 1984, the U.S. State Division has listed Iran as a “state sponsor of terrorism,” alleging the Iranian authorities supplies terrorists with training, money and weapons.

Among the main occasions in U.S.-Iran relations spotlight the variations between the nations’ views, however others arguably offered actual alternatives for reconciliation.

1953: US overthrows Mossadegh

In 1951, the Iranian Parliament selected a brand new prime minister, Mossadegh, who then led lawmakers to vote in favor of taking over the Anglo-Iranian Oil Company, expelling the corporate’s British homeowners and saying they wished to show oil earnings into investments within the Iranian individuals. The U.S. feared disruption within the world oil provide and apprehensive about Iran falling prey to Soviet affect. The British feared the lack of low cost Iranian oil.

President Dwight Eisenhower determined it was greatest for the U.S. and the U.Okay. to eliminate Mossadegh. Operation Ajax, a joint CIA-British operation, satisfied the Shah of Iran, the nation’s monarch, to dismiss Mossadegh and drive him from workplace by drive. Mossadegh was changed by a way more Western-friendly prime minister, handpicked by the CIA.

1979: Revolutionaries oust the shah, take hostages

After more than 25 years of relative stability in U.S.-Iran relations, the Iranian public had grown unhappy with the social and financial circumstances that developed underneath the dictatorial rule of Shah Mohammad Reza Pahlavi.

Pahlavi enriched himself and used American support to fund the navy whereas many Iranians lived in poverty. Dissent was usually violently quashed by SAVAK, the shah’s security service. In January 1979, the shah left Iran, ostensibly to hunt most cancers remedy. Two weeks later, Ayatollah Ruhollah Khomeini returned from exile in Iraq and led a drive to abolish the monarchy and proclaim an Islamic authorities.

In October 1979, President Jimmy Carter agreed to allow the shah to come back to the U.S. to hunt superior medical remedy. Outraged Iranian college students stormed the U.S. Embassy in Tehran on Nov. 4, taking 52 People hostage. That satisfied Carter to sever U.S. diplomatic relations with Iran on April 7, 1980.

Two weeks later, the U.S. navy launched a mission to rescue the hostages, however it failed, with aircraft crashes killing eight U.S. servicemembers.

The shah died in Egypt in July 1980, however the hostages weren’t launched till Jan. 20, 1981, after 444 days of captivity.

1980-1988: US tacitly sides with Iraq

In September 1980, Iraq invaded Iran, an escalation of the 2 international locations’ regional rivalry and spiritual variations: Iraq was ruled by Sunni Muslims however had a Shia Muslim majority inhabitants; Iran was led and populated mostly by Shiites.

The U.S. was involved that the battle would restrict the circulation of Center Jap oil and wished to make sure the battle didn’t have an effect on its shut ally, Saudi Arabia.

The U.S. supported Iraqi leader Saddam Hussein in his struggle in opposition to the anti-American Iranian regime. In consequence, the U.S. principally turned a blind eye towards Iraq’s use of chemical weapons in opposition to Iran.

U.S. officers moderated their common opposition to these unlawful and inhumane weapons as a result of the U.S. State Division didn’t “wish to play into Iran’s hands by fueling its propaganda in opposition to Iraq.” In 1988, the war ended in a stalemate. Greater than 500,000 navy and 100,000 civilians died.

1981-1986: US secretly sells weapons to Iran

The U.S. imposed an arms embargo after Iran was designated a state sponsor of terrorism in 1984. That left the Iranian navy, in the midst of its struggle with Iraq, determined for weapons and plane and automobile elements to maintain combating.

The Reagan administration decided that the embargo would likely push Iran to hunt assist from the Soviet Union, the U.S.’s Chilly Conflict rival. Quite than formally finish the embargo, U.S. officers agreed to secretly sell weapons to Iran beginning in 1981.

The final cargo, of anti-tank missiles, was in October 1986. In November 1986, a Lebanese journal uncovered the deal. That revelation sparked the Iran-Contra scandal within the U.S., with Reagan’s officers discovered to have collected cash from Iran for the weapons and illegally sent those funds to anti-socialist rebels – the Contras – in Nicaragua.

1988: US Navy shoots down Iran Air flight 655

On the morning of July 8, 1988, the united statesVincennes, a guided missile cruiser patrolling within the worldwide waters of the Persian Gulf, entered Iranian territorial waters whereas in a skirmish with Iranian gunboats.

Both throughout or simply after that alternate of gunfire, the Vincennes crew mistook a passing civilian Airbus passenger jet for an Iranian F-14 fighter. They shot it down, killing all 290 individuals aboard.

The U.S. referred to as it a “tragic and regrettable accident,” however Iran believed the aircraft’s downing was intentional. In 1996, the U.S. agreed to pay US$131.8 million in compensation to Iran.

1997-1998: The US seeks contact

In August 1997, a reasonable reformer, Mohammad Khatami, gained Iran’s presidential election.

U.S. President Invoice Clinton sensed a chance. He sent a message to Tehran by means of the Swiss ambassador there, proposing direct government-to-government talks.

Shortly thereafter, in early January 1998, Khatami gave an interview to CNN wherein he expressed “respect for the great American people,” denounced terrorism and advisable an “alternate of professors, writers, students, artists, journalists and vacationers” between the US and Iran.

Nonetheless, Supreme Chief Ayatollah Ali Khamenei didn’t agree, so not a lot got here of the mutual overtures as Clinton’s time in workplace got here to an finish.

In his 2002 State of the Union address, President George W. Bush characterised Iran, Iraq and North Korea as constituting an “Axis of Evil” supporting terrorism and pursuing weapons of mass destruction, straining relations even additional.

2002: Iran’s nuclear program raises alarm

In August 2002, an exiled insurgent group introduced that Iran had been secretly working on nuclear weapons at two installations that had not beforehand been publicly revealed.

That was a violation of the phrases of the Nuclear Nonproliferation Treaty, which Iran had signed, requiring international locations to reveal their nuclear-related amenities to worldwide inspectors.

A type of previously secret areas, Natanz, housed centrifuges for enriching uranium, which could possibly be utilized in civilian nuclear reactors or enriched additional for weapons.

Beginning in roughly 2005, U.S. and Israeli authorities cyberattackers collectively reportedly focused the Natanz centrifuges with a custom-made piece of malicious software program that became known as Stuxnet.

That effort, which slowed down Iran’s nuclear program was one of many U.S. and international attempts – principally unsuccessful – to curtail Iran’s progress towards constructing a nuclear bomb.

2003: Iran writes to Bush administration

In Might 2003, senior Iranian officers quietly contacted the State Department by means of the Swiss embassy in Iran, searching for “a dialogue ‘in mutual respect,’” addressing 4 huge points: nuclear weapons, terrorism, Palestinian resistance and stability in Iraq.

Hardliners within the Bush administration weren’t interested in any major reconciliation, although Secretary of State Colin Powell favored dialogue and different officers had met with Iran about al-Qaida.

When Iranian hardliner Mahmoud Ahmadinejad was elected president of Iran in 2005, the chance died. The next 12 months, Ahmadinejad made his own overture to Washington in an 18-page letter to President Bush. The letter was extensively dismissed; a senior State Division official told me in profane phrases that it amounted to nothing.

2015: Iran nuclear deal signed

After a decade of unsuccessful makes an attempt to rein in Iran’s nuclear ambitions, the Obama administration undertook a direct diplomatic strategy starting in 2013.

Two years of secret, direct negotiations initially bilaterally between the U.S. and Iran and later with different nuclear powers culminated within the Joint Comprehensive Plan of Action, usually referred to as the Iran nuclear deal.

Iran, the U.S., China, France, Germany, Russia and the UK signed the deal in 2015. It severely restricted Iran’s capability to counterpoint uranium and mandated that international inspectors monitor and enforce Iran’s compliance with the settlement.

In return, Iran was granted reduction from worldwide and U.S. financial sanctions. Although the inspectors usually licensed that Iran was abiding by the settlement’s phrases, President Donald Trump withdrew from the settlement in Might 2018.

2020: US drones kill Iranian Maj. Gen. Qassem Soleimani

On Jan. 3, 2020, an American drone fired a missile that killed Maj. Gen. Qassem Soleimani, the chief of Iran’s elite Quds Force. Analysts thought-about Soleimani the second most powerful man in Iran, after Supreme Chief Ayatollah Khamenei.

On the time, the Trump administration asserted that Soleimani was directing an imminent assault in opposition to U.S. property within the area, however officials have not provided clear evidence to assist that declare.

Iran responded by launching ballistic missiles that hit two American bases in Iraq.

2023: The Oct. 7 assaults on Israel

Hamas’ brazen assault on Israel on Oct. 7, 2023, provoked a fearsome militarized response from Israel that continues in the present day and served to severely weaken Iran’s proxies within the area, particularly Hamas – the perpetrator of the assaults – and Hezbollah in Lebanon.

2025: Trump 2.0 and Iran

Trump initially noticed a chance to forge a brand new nuclear take care of Iran and to pursue other business deals with Tehran. As soon as inaugurated for his second time period, Trump appointed Steve Witkoff, an actual property investor who’s the president’s buddy, to function particular envoy for the Center East and to steer negotiations.

Negotiations for a nuclear deal between Washington and Tehran started in April, however the international locations didn’t attain a deal. They had been planning a brand new spherical of talks when Israel struck Iran with a collection of airstrikes on June 13, forcing the White Home to reconsider is position.

On June 22, within the early morning hours, the U.S. selected to behave decisively in an attempt to cripple Iran’s nuclear capacity, bombing three nuclear websites and inflicting what Pentagon officers referred to as “extreme harm.”

The struggle lasted 12 days, throughout which Trump declared that Iranian nuclear sites had been “totally obliterated” – a declare denied by Tehran.

2026: Simmering battle turns into scorching struggle

In early 2026, successive rounds of oblique talks befell between Iran and representatives from the U.S. administration. They adopted main unrest in Iran throughout which Trump told protesters that “assistance is on its approach.”

Then, on Feb. 28, the U.S. and Israel started bombing Iran in an operation the U.S. called “Epic Fury.” Within the preliminary wave of airstrikes, Supreme Leader Ali Khamenei and different senior members of the Islamic Republic had been killed. Tehran responded by hitting targets throughout the Gulf, turning the battle right into a wider, regional affair.

That is an up to date model of a story originally published on June 17, 2025.