The U.S. Army is reorganizing to create smaller, more mobile units without sacrificing firepower. Some experts, however, wonder whether that aim addresses the lessons of Iraq.

Experts say graduating Russia from Cold War-era legislation linked to emigration and trade would be a step toward warming relations with Moscow.

Russia’s hosting of the G8 summit in St. Petersburg was meant to symbolize the country’s integration into the club of the world’s richest industrialized democracies. But with Russia moving in an incr…

New screening measures at U.S. airports are being called overly intrusive by some passengers and civil rights groups. National security experts advise using a system that relies more on intelligence,…