The U.S. Navy’s dominance of the world’s oceans has made it an indispensable foreign policy tool and a guarantor of global trade, but a mix of challenges is raising difficult questions about its futu…

The European Union’s governing bodies could see a significant shake-up as millions of voters head to the polls across the twenty-seven-member bloc, with consequences for transatlantic ties.

Each Friday, I look at what the presidential contenders are saying about foreign policy. This Week: The demise of arms control agreements and the rise of geopolitical competition are a dangerous mix…