WASHINGTON — President Donald Trump tried to keep a fragile ceasefire between Israel and Iran in place Tuesday as reports ...

President Trump is doubling down on the administration’s claim that U.S. military strikes “completely destroyed” Iran’s three nuclear sites last month, pushing back against a new assessment ...

With questions mounting over the impact of the U.S. and Israeli onslaught on Iran’s nuclear facilities and military infrastructure, a return to hostilities could be a matter of when, not if.

Pentagon reports Iran's nuclear facilities were "completely obliterated" in June strikes, offering a more optimistic ...

The U.S. attack on Fordow did real damage to the site. But it also set back the IAEA's oversight of Iran's nuclear program. The post Iran's Nuclear Program Took a Real Hit. So Did IAEA Oversight of It ...

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

When it comes to military actions that alter the course of history, few are so bold—or technically challenging-as recent American and Israeli attacks on Iran’s nuclear sites. At the center of this ...

President Donald Trump dismissed an earlier Defense Intelligence Agency assessment as inconclusive and premature.

Trump says U.S. strikes "obliterated" key Iranian nuclear sites, setting the program back decades, but sources say an early intel assessment says Iran could rebuild some of its capabilities in months.

President Donald Trump affirmed his willingness to strike Iran again if it rebuilds its nuclear program, with NATO's chief ...

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

Core components of Iran’s nuclear effort were damaged but not destroyed by U.S. airstrikes on three key facilities, say ...