Ukraine said it struck a Russian air base on Saturday, while Russia continued to attack Ukraine with hundreds of drones overnight as part of a stepped-up bombing campaign that has dashed hopes for a breakthrough in efforts to end the more than 3-year-old war.

When the Russian invasion of Ukraine began, many expected Russia's Air Force to dominate the skies, leveraging its advanced fleet of jets, bombers, and helicopters. However, despite having one of the largest and most advanced air forces in the world,

It was the latest in a series of almost weekly large-scale missile and drone attacks. President Trump said he “didn’t make any progress” with President Vladimir V. Putin of Russia.