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

President Trumps cryptic “two weeks” timeline has returned, this time hinting at a “major statement” on Russia amid ...

A detailed timeline of events shows the White House was aware of an ordered pause in weapons to Ukraine in real time and ...

Amid rising tensions with Iran, the US State Department has issued a travel warning, particularly for dual citizens.

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

The framework under discussion includes predefined intelligence triggers, joint threat assessments, and an agreed-upon process for authorizing strikes if Iran resumes enrichment activity or ...

Larijani's remarks, even if intended as a joke, will add to speculation over possible retaliation by Iran for the U.S. attacks.

The aftermath of the 12-day war with Iran looks mixed more than two weeks later. Iran’s nuclear program was badly damaged and likely set back for years.

Trump's bombing of Iran and increased aggression toward Russia likely wasn’t the “America First” foreign policy agenda many Republicans were expecting.

Some of Iran’s stockpile of near weapons-grade enriched uranium survived US air strikes and could still be salvaged by Tehran ...

Senate Democrats are also forcing a vote as soon as this week on a resolution by Sen. Tim Kaine, D-Va., requiring congressional approval for specific military action in Iran.

The U.S. has a troubled history of interference in Iranian politics in pursuit of Washington's interests. The CIA-backed coup ...