Following drone sightings over U.S. Air Force bases in the UK, heightened security protocols and a criminal investigation are in place. The incursions coincide with rising military activity amid ongoing tensions in Ukraine, where a recent wave of Russian drone and missile attacks has left nearly 1 million Ukrainians without power. British authorities consider offenders' actions serious, with potential prison sentences of up to 14 years under national security laws. Authorities have restricted airspace and are collaborating with U.S. forces to investigate these incidents.