Trade between the world’s two biggest economies has ballooned in recent decades, bringing significant benefits but also perils that have led to calls to rethink the relationship.

China’s central government has cracked down on press freedom as the country expands its international influence, but in the internet age, many of its citizens hunger for a free flow of information.

Algerian and Western counterterrorism efforts, along with an African-led peacekeeping force in Mali, have shifted the North African al-Qaeda franchise’s criminal and terrorist activities to remote ar…

U.S. missile defense in the twenty-first century is focused on emerging threats from North Korea and Iran, but critics say these systems are too costly and largely unproven.