A number of deep-seated assumptions mean that the U.S. foreign policy establishment is underprepared for its biggest challenge in the twenty-first century: dealing with a rising China. Reconsidering these assumptions will help remove some major stumbling…

Military options include grounding the regime's air force, the official said.

Secretary of State Rex Tillerson said Thursday that the U.S. seeks to remove Bashar Assad as Syria's president through "a political process," not through war despite reports to the contrary.

"The process by which Assad would leave is something that I…

The weapon has been a mainstay of U.S. warfare since the Persian Gulf War.