The Ukrainian Air Force issued a nationwide missile threat warning early Friday, after detecting the takeoff of a Russian MiG-31K aircraft. “All of Ukraine – missile threat! A MiG-31K takeoff has been detected,” the Air Force said in a statement. JOIN US ON TELEGRAM Follow our coverage of the war on the @Kyivpost_official . Regional military administrations activated air raid alerts across the country, with Ukraine’s digital air alert map showing warnings in every region. The MiG-31K is Russia’