The US bid to impose so-called 'snapback' sanctions on Iran was roundly rejected by the UN security council.
The US and Iran had been friends for over a century before the British and American coup in 1953 eventually turned them into enemies.
Despite what you might see on the news, many of Iran's young people are far from rebellious. Instead, they have dealt with dwindling job prospects by conforming to a strict code of morality.
The assassination of the Iranian general could have lasting effects on energy markets. Which countries could benefit from it and which could be negatively affected?
The Iranian military operates cyber espionage and sabotage through a network of dozens of contractors, allowing the state to attack foes while denying involvement.
Indonesia, which has the world's largest Muslim population, is expected to face no political impacts from US-Iran conflict due to Indonesia's minimal involvement in the region.
Some of the major events in US-Iran relations highlight the differences between the nations' views, but others presented real opportunities for reconciliation.
Since President Donald Trump took office, Iranians have held a more unfavorable view of the US.
Tensions between Iran and the US have spiked, but oil prices have barely budged. Why not? And is the oil markets' muted response an accurate reflection of the rising tensions?
The history of the Iran-United States relationship is complex and often brutal. Understanding it helps put today's turmoil into sharper focus.
Less overt than conventional military actions, cyber attacks can have dangerous consequences – especially when they target critical infrastructure systems controlled by the private sector.
The downing of Flight PS752 suggests Iran’s missile technology has grown increasingly sophisticated. But its ability to responsibly control that technology has not.
Iranian leaders seem eager to use the powerful emotions surrounding his death to coalesce power around the regime. History shows that mass mourning is a powerful way to bring people together.
Is a 19th-century French author’s cosmic joke turning into a real-life global nightmare?
After the assassination of General Qassem Soleimani, further esclation in the conflict between Iran and the US could come in the form of a cyber-attack.
Key evidence from the wreckage can show if the plane experienced engine trouble or was hit by a missile. But first, Iran must decide how much outside help it will accept in an investigation.
Both President Trump and President Obama used military force without informing Congress, or getting its approval. But the differences reveal more than the similarities.
The US and other countries set up the modern system of international law after World War II. Does the US killing of an Iranian general violate those laws? What about Iran's attack on US bases in Iraq?
Trump recently warned Iran that the US could target its cultural sites. Many of Iran's cultural sites carry deep religious meaning for a global Shii community and such a threat risks alienating them.
The Persian Empire – on the site of what is now Iran – set the standard for superpowers of the ancient world and left a cornucopia of treasures and architectural masterpieces.