Just as Iran's centre ground was collapsing under political pressure, Donald Trump offered the hardliners a gift.
Ever since the shocking spectacle of the Iranian Revolution and hostage crisis, American conservatives have reserved a special disdain for the Islamic Republic.
Iran is a dangerous mischief-maker in the Middle East – but scrapping the nuclear deal will probably make things worse.
Gina Haspel is in hot water over the CIA's use of 'enhanced interrogation techniques'. And in decades past, the US imprisoned people for using the same methods.
The connection between oil and arms trade is not a conspiracy theory.
Donald Trump has always traded on his image as a master dealmaker – but many deals have been done with North Korea before.
The astonishing sight of two Korean leaders crossing the border that divides them is just a first step.
A recent intervention by the US, the UK and France is only part of a far broader – and deadlier – campaign.
The Syrian conflict is a war of many sides. Here's a rundown of the key players.
The legal standards for military intervention are complicated and highly specific. It's not clear an attack on Syria would meet them.
Nothing the world has done has stopped Bashar al-Assad's regime from using chemical weapons – but it's imperative to keep trying.
After the US invasion brought their dictator down, Iraqis' everyday lives were marked by chaos and violence.
Reportedly passed over for secretary of state because of his moustache, John Bolton has made it into Donald Trump's administration at last.
Coalition forces are careful about how they report civilian deaths. And we think war is painless, as a result.
Thanks to South Korea, there is a chance for peace with North Korea. Whether the Trump administration can take it is another matter.
A year ago, productive north-south talks seemed inconceivable – but with the US tripping over its own feet, things are changing.
Donald Trump doesn't have one foreign policy – he has several, and they all clash.
Mounting evidence suggests we are so mesmerised by the theatre around Donald Trump that we have lost sight of how the US security establishment wields power.
As tensions between the US and Russia escalate, both sides are developing technological capabilities, including artificial intelligence that could be used in conflict.
The contestation of Asia will continue this year, with many countries facing internal and external battles.