President Trump's speech about Iran wasn't just aimed at that country or the US. He also targeted NATO allies, urging members of the alliance to step up and help US efforts in the Middle East.
Iran's missile strikes on Iraqi bases in response to the killing of Iranian general Qassem Soleimani have raised tensions between the U.S. and Iran. But war seems unlikely at this point.
Iran has withdrawn from key elements of the 2015 nuclear deal. The UK should respond with caution – and flexibility.
To make sense of the Soleimani assassination, you need to look at the global economics of oil.
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.
Any disruption to shipping in the narrow seaway could impact oil prices and ratchet up geopolitical tensions.
The drone probably used to kill Iranian general Qassem Soleimani doesn't take away all risks and responsibilities from military personnel.
Tehran is making threats but its options are somewhat limited.
For decades, Iran has built up a network of proxies across the Middle East. Will it now use them to retailiate for the killing of its top general?
If the US makes good on the president's threat, Iran's heritage won't be the only thing damaged. Washington's reputation would also take a hit.
Given the perils of direct confrontation with the US, the most likely recourse for Iran may be to mobilise its proxy militias to attack American assets in Iraq.
It's very dangerous to assume that Iran will not escalate the crisis further, much less that the US could limit any violence that might ensue.
President Trump's Iran policy took a dramatic turn when the US killed Iran's top military commander in a drone strike. To avoid war, one foreign policy scholar says Trump has to reverse his stance.
The Trump administration is only the latest to push the boundaries of the law to take out foreign adversaries.
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US dominance over the international oil system has influenced the relationship between Saudi Arabia and Iran.
Was the ban a Muslim ban -- or was that just an anti-Trump narrative? A political scientist combs through the data for answers.
Why young Iraqis to took the streets in protests that left more than 100 people dead after a brutal suppression.
Data show that the US intervenes more in other countries' affairs than it did in the past. It also currently hires fewer career professionals for ambassadorial or foreign affairs positions.
A former congressional staffer says withholding damning evidence from Congress and using civilians to carry out presidential or intelligence agency agendas links the Ukraine crisis to other scandals.