Skeptics don’t understand why Kyiv insists on holding a city of modest strategic value.

His unusual stance on the war shows just how fast his Church is changing.

Cheap, low-tech drones have become a vital weapon in a war where one side lacks long-range munitions.

Images from this year’s Ivan Kupala Night celebrations from Ukraine, Russia, Lithuania, and Poland

A lack of defense production has created an alarming gap between America’s strategy and its capabilities.

The U.S. president’s optimism about Ukraine creates the expectation that everything is possible—and commits him to a Ukrainian victory.

Start-ups are redefining great-power conflict.

The U.S. risks provoking Russian aggression.

The congressional opposition to the president’s funding request explained—as far as it can be

Russia’s gambit to deter support for Ukraine by restricting energy supplies flopped—thanks to concerted action by European countries.