Exclusive: U.S. Warns Ukraine of Full-Scale Russian Invasion Within 48 Hours Published Feb 23, 2022 at 9:35 AM EST Updated Feb 24, 2022 at 12:27 PM EST President Joe Biden's administration has informed Ukrainian President Volodymyr Zelenskyy of intelligence assessing that Russia is preparing to conduct a full-scale invasion of the neighboring country within the next 48 hours, U.S. intelligence off