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.

This is the first time since World War II that there may be no cooperative way out.

What to do to deter a Russian invasion of Ukraine—and what to do if deterrence fails.

Iran’s web of armed partners such as Hezbollah and the Houthis serves to strengthen its influence in the Middle East and could pose a significant threat to the United States and U.S. allies in the re…