As the brinksmanship by North Korea continues, don't miss a rare interview with Secretary of State Rex Tillerson, tonight in the 6:00pm ET hour on "Special Report."

Bret Baier will question Tillerson on the various foreign policy challenges facing the United States, including in the Middle East and Iran.

He'll also ask Tillerson about how the first 100 days of the Trump administration have gone at the State Department. 

North Korea just conducted what it called the "largest ever" live fire drills, involving artillery, submarines and Navy and Air Force vehicles.

News of the drill came on the same day that the full U.S. Senate went to the White House for a rare closed-door briefing on North Korea.

The meeting was attended by Tillerson, Defense Secretary James Mattis and other top military and intelligence officials. 

Don't miss the interview with Secretary Tillerson, tonight in the 6pm ET hour on a two-hour "Special Report."