One of the leading sources of refugees in Europe is the impoverished east African nation of Eritrea. Many fleeing describe chronic human rights abuses.

President Donald J. Trump has wide latitude to enact the sweeping changes to U.S. foreign policy that he has promised, but his executive authority is constrained by congressional legislation, treaty …

U.S. and international sanctions have battered the Iranian economy and brought Tehran to negotiate over its nuclear program. Lifting them is central to a deal but will be a complex process.

Pakistan has emerged as a sanctuary for some of the world’s most violent groups, including al-Qaeda, the Taliban, and homegrown militants, that threaten the stability of Pakistan as well as the regio…