National security adviser Jake Sullivan said he believes the Biden administration ... "there are frequently bad things ...

Outgoing National Security Adviser Jake Sullivan denied ... again as a deterrent against its Russian invaders. “That is not under consideration. No,” Sullivan told ABC News’ “This Week ...

National security adviser Jake Sullivan told ABC News on Sunday morning ... torn country as it prepares for its third winter of war with Russia. The Associated Press (AP) reported, citing two ...

Russia is "ground down in a war of attrition" in Ukraine, Sullivan said, preventing it from lending greater military aid to Assad and contributing to the speed and scale of the current rebel ...

Ukraine had reason to kill Lt. Gen. Igor Kirillov, but what good will it do?

Donald Trump has promised he'll achieve peace in the region. We'd be foolish to believe him.

The US is not considering returning to Ukraine the nuclear weapons it gave up after the Soviet Union collapsed, White House National Security Advisor Jake Sullivan ... for its war against Ukraine ...

“God forbid we end up in a full-scale war with the PRC,” Jake Sullivan said on ... China and adversaries such as Russia, Iran, and North Korea. Sullivan said it could be more than a decade ...