The military has vaccinated the vast majority of service members, but pockets of hesitancy remain. What’s driving the reluctance, and what should be done to overcome it?

Mikhail Gorbachev will be remembered in the West for laying the basis for more constructive relations to ease the end of the Cold War, but vilified in Russia for speeding the Soviet Union’s demise.

The world is on the cusp of a new era where nuclear weapons are likely to play a bigger role.

As the 2020 presidential campaign heats up, U.S. politics is getting harder and harder to explain to the rest of the world.