Unidentified drones have been spotted over three US Air Force bases in the UK, including a major facility where the US plans to store nuclear weapons. The sightings, confirmed by the US Air Force, have raised security concerns amid rising tensions between Russia and the UK. The Pentagon is taking the situation seriously, with F-15E Strike Eagles scrambled to intercept the drones. Investigations are underway to determine the nature and intent of these incursions, amidst fears that they could be linked to geopolitical threats.