Former Trump national security advisor Robert O'Brien told FNC's "Sunday Morning Futures" why Donald Trump is talking about ...

Former National Security Advisor Robert O’Brien raised alarm bells Tuesday on Fox Business about the safety and economic ...

As the climate gets warmer, the Arctic is going to be a pathway that maybe even cuts down on the usage of the Panama Canal.

Former national security adviser Robert O’Brien said in a Sunday interview that Denmark should let the U.S. “buy” Greenland ...

Former National Security Advisor Robert O'Brien warns about terror on the rise and the porous southern border posing a threat ...

Trump's former White House national security advisor made veiled threats against a NATO ally, taking the Greenland issue in a ...

A former national security adviser to Donald Trump has finally acknowledged the existence of climate change, unlike his ...

The former Trump national security advisor said recent talk about buying Greenland and controlling the Panama Canal again is ...

O'Brien compared Trump to Ronald Reagan and commented that he saw the President-elect as looking ahead at coming global conflicts.

Former national security adviser Robert O’Brien said in a Sunday interview that Denmark should let the U.S. “buy” Greenland if it cannot defend the self-governing country, noting the ...