President Trump is pressuring Iran to either curtail its nuclear program or face military strikes, after Iran amassed a large stockpile of highly enriched uranium. Here's what to know.

Which Trump are we supposed to believe here? And – yes – I think not believing either version is an option.

The United States and Iran will hold their next round of nuclear talks Thursday in Geneva, a facilitator said Sunday, as the Islamic Republic faces both the threat of a U.S. military strike and new protests at home.

The head of the U.N. nuclear watchdog agency says Iran's enriched uranium "is still there," as he stresses the urgency of diplomacy to avert a U.S.-Iran war.

Iran is reportedly working to rebuild nuclear sites damaged during June 22 "Midnight Hammer" operation as the regime participates in Geneva talks.

The question of whether Iran's Supreme Leader Ali Khamenei has authorised the development of nuclear weapons has taken on urgency following the devastating 12-day conflict with Israel in June. Israeli and US strikes severely damaged Iran's nuclear ...

The official reportedly said Iran would seriously consider sending half of its most highly enriched uranium abroad, diluting the remainder, and participating in the creation of a regional nuclear enrichment consortium.

Iran has indicated it is prepared to make concessions on its nuclear program in talks with the U.S. in return for the lifting of sanctions and recognition of its right to enrich uranium as it seeks to avert a U.

WASHINGTON — American and Iranian negotiators have hashed out “guiding principles” for an agreement during the second round of talks on Tehran’s nuclear program, according to Iran Foreign Minister Abbas Araghchi.

The United States positions military assets as Trump warns Iran of possible strikes, Israel expands air operations inside Lebanon, Washington advances nuclear cooperation talks with Saudi Arabia, and Ukrainian authorities investigate an explosion in central Lviv.