Over the last ten days, Ukrainians have achieved astonishing gains over the Russian army. For six months, the Kharkiv region, in Ukraine’s east, has suffered through battle and Russian occupation. Now, Ukrainians are driving retreating Russian units as far as the pre-war border. The operational situation is fluid and dynamic …

What we’ve been able to provide Ukraine that has been most telling hasn’t been diplomatic or moral support, but a system that can put a rocket on a target 50 miles away.

Right-wing nationalists are spreading a dangerous “stab-in-the-back” myth to explain Russia’s crushing defeats. A new Russian protest movement is coalescing, but it’s neither pro-democracy nor anti-war. Instead, it’s the most extreme of Russian President Vladimir Putin’s supporters, who have grown increasingly furious at the unfolding military disaster for Russia in …