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

Ukrainian resistance and American support prevented a wide range of horrors.

The fight to retake the city of Kherson plays to the Ukrainians’ strengths, not the Russians’.

What were once perceived to be weaknesses are turning out to be advantages.

Start-ups are redefining great-power conflict.

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

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.

Human-rights champions from Russia, Ukraine, and Belarus will share the prize, given not to countries but to people working to change them.