Outgoing administration warns president-elect Tehran may ‘revisit its nuclear doctrine’ after events in the Middle East leave ...

The soon-to-depart national security adviser says the global situation has notably improved over the last four years.

Listen: Outgoing US National Security Advisor Jake Sullivan joins Ian Bremmer in front of a live audience at the 92nd Street ...

The possibility of a more stable, integrated Middle East, where our friends are stronger, our enemies are weaker — that is ...

Palestinian medics said an Israeli airstrike hit a refugee camp in the central Gaza Strip, killing at least 25 Palestinians ...

Palestinian medical officials say an Israeli airstrike flattened a multistory building in central Gaza, killing at least 25 ...

Palestinian medics said more than 40 people, most of them children, were receiving treatment in two hospitals.

Biden wants to help Ukraine before he leaves office. Jake Sullivan told ABC News that Biden aims to help Ukraine "strengthen' its position. President-elect Trump has been skeptical of the level of ...

Sullivan: Biden's team will "do everything in our power" in its final 50 days. National Security Adviser Jake Sullivan said Sunday that President Joe Biden is looking to make as much progress as ...

US President Joe Biden will launch a renewed drive Wednesday for a Gaza ceasefire and hostage release deal, his national security adviser Jake Sullivan said. The truce that began before dawn ...