Iran has spent decades building multi-tiered military capabilities at home and across the region that were at least partly ...

Prior to the attack, Iran had threatened to retaliate against the U.S. if it became involved in its conflict with Israel.

Israel has carried out attacks on Iran's nuclear facilities, alleging Tehran was getting close to obtaining a nuclear weapon.

Much of the focus on Iran’s nuclear program has been on Tehran’s enrichment of uranium, but experts also keep a close watch ...

A reactor in Tehran is a monument to the U.S. relationship with Iran when the country was led by a secular, pro-Western ...

Meanwhile, nearly 400 kilograms, or 880 pounds, of uranium enriched to 60% purity is still publicly unaccounted for.

A preliminary classified intelligence report produced by the Defense Intelligence Agency counters the White House’s claims of ...

An early intelligence assessment reportedly found that Tehran’s nuclear program was only set back by months after U.S. military strikes on three Iranian nuclear facilities this past weekend, ...

The US dropped a barrage of massive bunker-buster bombs on three Iranian nuclear sites early Sunday in a strike Trump quickly hailed as a “bullseye.” ...

WASHINGTON (AP) — A U.S. intelligence report suggests that Iran’s nuclear program has been set back only a few months after U ...

U.S. President Donald Trump told Congress this week that the Iranian sites bombed by the U.S. housed a "nuclear weapons development program," even though U.S. spy agencies have said no such program ...

Israel and Iran continue to exchange fire, just days after the United States entered the war by bombing three key nuclear ...