This Iran war may not end as quickly as the last one.

From enriched uranium and ballistic missiles to sanctions and regional influence, the differences are many.

President Donald Trump took to social media on Wednesday to warn Iran of impending military strikes if its leaders did not seek a wide-ranging political settlement.

A US military strike to support Iran’s protesters would need to be very different from Trump’s operation to target the country’s nuclear facilities.

Rising US–Iran tensions have sparked fears of imminent conflict, with the US deploying a nuclear bomb–sniffing aircraft and a ...

The death of the last treaty between Russia and the U.S. that limited the size of nuclear arsenals may spark a new arms race, says a former security council director.