The totality of President Donald Trump’s statements and actions against NATO makes clear that the United States cannot be relied on to come to the defense of its European allies.

As we commemorate the 100th anniversary of the end of World War I, which transformed how wars are fought and won, the world again stands on the precipice of a dramatic revolution in warfare, this one…

ISIS Beatles Trial Shines Light on U.S. Counterterrorism and Hostage Policy

President Trump goes to Europe this week. Its leaders are bracing for the impact.

The Democratic field could touch on a number of foreign policy issues, from climate change to Iran, during its first prime-time sparring session.