The eurozone crisis has consequences far beyond the continent’s economic performance, such as the EU’s ability to forge coherent defense and foreign policy.

An increase in terror incidents involving Islamic radicals who are U.S. citizens is vexing law enforcement officials and posing new questions about the roots of their radicalization.

The UN conference on climate change that begins December 7 in Copenhagen is supposed to produce new targets for emissions reductions, but experts say major countries are at odds on the ultimate goal …

A short summary of each of the G-20 member’s objectives for the April summit in London.

A profile of ETA, a terrorist separatist group operating in the Basque regions of Spain and France.