Russia fired around 450 long-range drones and 70 missiles at Ukraine in a major attack overnight targeting the country's power grid in freezing temperatures, Ukrainian President Volodymyr Zelenskyy said Tuesday. The barrage came a day before the two countries were due to attend a new round of U.S.-brokered talks in Abu Dhabi , United Arab Emirates, on ending the all-out war, which Russia launched nearly four years ago. The bombardment of at least five regions of Ukraine specifically took aim at