Europe’s new vulnerability has been a boon to its defense companies. The STOXX Europe Total Market Aerospace & Defense index soared to an all-time high Tuesday, falling back slightly since then.

European leaders have vowed to rearm the continent at historic emergency talks held after the United States threatened to rip up 80 years of security guarantees over the trajectory of Russia’s ...

Europe has been warned, and warned again. Still, it has been reduced to a near-fainting fit — and, in the case of one German official, actual tears — over the Trump administration’s tough ...

European Union leadership announced a plan Tuesday to shore up the continent's collective defense by significantly boosting military spending, hours after President Trump said the U.S. was ...