Iran's president signaled a more diplomatic tone amid heightened tensions and distrust over nuclear negotiations weeks after ...

Tehran issues warning against U.N. snapback sanctions amid concerns over its nuclear program, while expert warns that ...

Officials in Israel are acknowledging that some enriched uranium may have survived the powerful U.S. strikes on Iranian ...

The process of uranium enrichment increases the concentration of U-235, an isotope that can sustain a nuclear chain reaction.

Foreign Minister Abbas Araghchi said in a speech to Tehran-based foreign diplomats that Iran has always been ready and will ...

Iran's nuclear program may get more difficult to monitor if no deal is reached with the United States. The U.N. nuclear ...

The IAEA had assessed that Iran has enriched uranium close to bomb-grade levels, although Iran says its program is for ...

Israeli Prime Minister Benjamin Netanyahu claims Iran will not pursue nuclear weapons following U.S. and Israeli strikes, ...

The United Kingdom, France and Germany have agreed to restore tough U.N. sanctions on Iran by the end of August if there has ...

The recent strikes could convince Iran and other states that building nuclear weapons is the only way to prevent such attacks ...

Former national security advisor and HKS faculty member Jake Sullivan says negotiations following the Iran strikes are key ...