KYIV, Ukraine: Russia fired more than 500 drones and two dozen missiles at Ukraine overnight, authorities said Wednesday, as Ukraine’s president and European leaders pressed on with talks on how to strengthen Ukrainian defenses and boost as-yet unsuccessful US-led peace efforts. The main Russian nighttime targets were civilian infrastructure, especially energy facilities, Ukrainian President Volodymyr Zelensky said, as another winter approaches three years after Russia’s all-out invasion of its neighbor.