Blasts rang out across Ukraine’s capital Kyiv and other cities early on Sunday, as Russia staged its biggest missile attack since August and targeted power facilities with the winter setting in, officials said. Ukrainians have been bracing for a major attack on the hobbled power system for weeks, fearing crippling damage to the grid that would cause long blackouts and build psychological pressure at a critical moment in the war Russia launched in February 2022. “Another massive attack on the power system is under way. The enemy is attacking electricity generation and transmission facilities throughout Ukraine,” Ukrainian Energy Minister German