U.S. military and economic support for Ukraine has so far weathered the widening impeachment inquiry into President Trump’s contacts with Kyiv. This backing could strengthen Ukraine in the next round…

Russians have voted on a sweeping package of more than two hundred constitutional amendments, the most important of which exempts President Vladimir Putin from term limits and potentially allows him …

U.S.-Russia bilateral relations have fallen to a new low, with Ukraine, Belarus, cyberattacks, and nuclear weapons among the biggest disagreements. What’s the best way to judge this summit’s success?…

As Putin tries to manage Russia’s coronavirus outbreak, the national security bureaucracy faces challenges and opportunities of its own.

A look at the post-9/11 war powers law that the Trump administration could use to justify conflict with Iran.