The scale of the buildup seems aimed at readying forces for expansive operations, analysts said.

Onetime allies, the United States and Iran have seen tensions escalate repeatedly in the four decades since the Islamic Revolution.

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

World leaders often make quiet trips that don’t get much attention at first.

The Islamic Republic has experienced multiple mass protests in recent years, but the latest round of demonstrations come at a particularly difficult moment for the regime.

Russia and China would offer Iran diplomatic and economic aid amid US threats, but military support is unlikely if Washington takes action. Experts believe both Moscow and Beijing prioritize their relationships with the US over a direct confrontation regarding Iran,

Tracing the roots of the discord between two of the world’s most bitter foes.

After weeks of nationwide protests, Iran’s Supreme Leader ordered a violent crackdown that left thousands dead. President Trump, who had urged demonstrators to remain in the streets, ultimately did not intervene — a decision that now shapes the narrow set of options before him.

Turkey will offer to mediate between Washington and Tehran when Iran's foreign minister visits Friday, officials said, as Ankara mulls reinforcing security along its border should the dispute escalate.

The recent wave of protests in Iran constitutes one of the most significant developments in the history of the Islamic Republic. Although the Iranian authorities imposed an internet blackout to contain the flow of information,

Israel’s unmet aims during the 12-day war with Iran are the driving force behind renewed U.S. statements on military action

Iranian President Masoud Pezeshkian has opened the door to talks with the United States, but only under conditions that protect Iran’s national interests. In a statement, Pezeshkian said he has instructed Iran’s foreign minister to prepare for negotiations,