Ayatollah Ali Khamenei's comments are the most direct threat he's made so far amid escalating tensions with the U.S.

Trump hopeful of Iran deal after Tehran warns of regional war ...

For nearly half a century, Iran has prepared for a war with the United States. Unable to match America’s military power, Tehran has instead focused on ways to impose heavy costs that could shake the ...

The next seven days could lead to conflict between Iran, the US and its allies, or the start of a diplomatic breakthrough.

Iran’s Supreme Leader Ali Khamenei on Sunday warned the U.S. against attacking Tehran, threatening “regional war” if President Trump decides to strike. “The Americans should know if they start a war, ...

Pressure was building on Iran on Friday as President Donald Trump weighed a military strike on the Islamic Republic while U.S. allies in the region, including Israel and several Arab nations, urged re ...

Iran’s Islamic Republic, weakened by airstrikes in June and huge popular unrest, warns that it will strike back hard if ...

US President Donald Trump has reportedly responded to Iran's Supreme Leader Ayatollah Ali Khamenei, after the latter warned a ...