He says a "massive Armada" is "moving quickly, with great power, enthusiasm, and purpose" towards Iran.

Iran has warned it will deliver a crushing response to any US attack as Donald Trump ramps up pressure over nuclear negotiations

With reports that tens of thousands of Iranian protesters have been killed by regime forces in the latest wave of anti-government unrest, Donald Trump’s suggestion back in mid-January that “the killing has stopped” looks decidedly wide of the mark.

The bloody reprisals against protesters are the culmination of decades in which the regime’s "propensity and ability to use violence" has only increased, analysts say.

As Iran confronts the aftermath of mass state violence and braces for the possibility of U.S. strikes, debate over the country’s future has intensified.

Even after a 12-day war with Israel, Iran retains the arsenal to hit U.S. allies and bases. U.S. strikes would lead to “regional war,” Iran’s supreme leader said.

Trump issues ultimatum to Iran as U.S. naval fleet positions off coast. NATO ambassador says Iran must abandon nuclear ambitions, stop killing protesters.