UK reports Russia's unsuccessful attempt to bypass Ukraine's air defenses with drones.

Russia fired over 300 Iranian-made drones at Ukraine in May in an attempt to get the country to use up its stockpile of advanced air defense missiles, but the efforts failed, with 90% shot down without Ukraine needing to use advanced missiles, according to UK intelligence. Russia's failure to get Ukraine to waste its advanced air defense missiles comes alongside Russia's inability to destroy Ukrainian air defense systems, the UK MOD added.