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.

Russia overnight hit Ukraine with the biggest missile and drone attack since the start of the war, launching a record number of drones at Kyiv.Over 500 drones were launched into Ukraine, the second time in less than a week that Russia has launched a major attack on the country.

The reactions to the Trump administration’s decision to pause some weapons shipments to Ukraine couldn’t be more illustrative of the conflict: welcomed by the Kremlin, branded “inhumane” by Kyiv.