Since the start of his full-scale war, President Vladimir V. Putin of Russia has tried to drive wedges between Ukraine and its Western backers, warning of possible grave consequences as they supplied Kyiv with money and weapons.

It marked the first time that daily attacks by Moscow's new upgraded Geran drones were recorded in Ukrainian Air Force data. The growing use of jet-propelled and other varieties of drones prompted President Volodymyr Zelensky to condemn what he called an unfolding "horror" over the skies of Kyiv.