China and Russia are standing by Iran after the United States demanded nuclear talks with Tehran, with senior Chinese and Russian diplomats saying dialogue should only resume based on "mutual respect" ...

Trump has the leverage to demand disarmament, not merely arms control.

A letter President Trump wrote to Iran’s supreme leader in an attempt to jump-start talks over Tehran’s rapidly advancing ...

Here’s what to know about the tension between countries, Iran’s nuclear program and a letter Donald Trump wrote to Iran’s ...

Russian Foreign Minister Sergei Lavrov arrived in Tehran on Tuesday for talks with senior officials, Iranian media reported. Lavrov is to meet his Iranian counterpart Abbas Araghchi, the ISNA news ...

The International Atomic Energy Agency (IAEA) said Iran is taking steps to accelerate its near weapons-grade uranium in a broader effort to expand its capability for nuclear warfare, according to ...

VIENNA—Iran has sharply increased its stockpile of highly enriched uranium in recent weeks, according to a confidential United Nations report, as Tehran amasses a critical raw material for ...

Iran has accelerated its production of near weapons-grade uranium as tensions between Tehran and Washington rise after the election of U.S. President Donald Trump, a report by the United Nations ...

PARIS — Iran has substantially expanded production of highly enriched uranium since December, further increasing its stockpile of near-weapons-grade material, according to a person familiar with ...

VIENNA — Iran has accelerated its production of near weapons-grade uranium as tensions between Tehran and Washington rise after the election of U.S. President Donald Trump, a report by the ...