Although the situation in Ukraine continues to evolve rapidly, there are already several vital lessons to glean from Russia's incursion into the sovereign territory of its neighbor.

The U.S. State Department's Clean Network program, created in response to China's expanding capabilities in cyberspace, recalls the the warning George Kennan gave about the Soviet Union in his famous…

In this edition: the effects of internet censorship in China, the malicious uses of artificial intelligence, and U.S. Cyber Command's strategy to achieve domain superiority.

Each Friday this summer, we suggest foreign-policy-themed movies worth watching. This week: tales of espionage and conspiracy.

In Foreign Affairs online last month, we used our own implied earnings growth (IEG) estimates from stock prices around the world to evaluate President Trump’s impact on the U.S. market. We found …