Russia and Ukraine launched fresh drone attacks overnight, casting doubt that Moscow’s unilateral ceasefire proposal around the weekend’s Victory Day commemoration would be implemented.Russia’s Defense Ministry said its forces intercepted 264 Ukrainian drones between midnight and 7 a.m. local time, including some over the capital region. Moscow earlier said that it would halt combat operations and long-range strikes under a self-declared truce for May 8-9, but warned it would respond to Ukrainian attacks.Russia launched more than 140 strikes on Ukrainian frontline positions overnight and attempted 10 assaults, mostly against positions near Slovyansk, Ukrainian President Volodymyr Zelenskiy said on X. Ukraine...