Instead, Moscow and Kyiv have been drawn into an escalating duel of long-range aerial strikes as fighting along the roughly 1,250-kilometer (780-mile) front line in eastern and southern Ukraine has slowed, restricted by large numbers of drones and ground robots threatening troop movements.

Russia's first wartime parliamentary election is ending, with little opposition to President Vladimir Putin's policies. Ukraine fires more than 1,000 drones at Russia overnight, including hundreds toward Moscow.