The Ukrainian secret service said this video showed aircraft on fire at the Belaya air base in eastern Siberia. —AFP/FileKYIV, Ukraine: Ukraine said on Sunday it destroyed Russian bombers worth billions of dollars in a “large-scale” drone assault on enemy soil as it geared up for talks with Moscow counterparts to explore prospects for a ceasefire.In a spectacular claim, Ukraine said it damaged $7 billion worth of Russian aircraft parked at four airbases thousands of kilometres away, with...