Following a string of drone sightings in New Jersey last week, unidentified drones have now been seen near NAS Joint Reserve Base and Lockheed Martin.

There have been a series of mystery drone sightings across the United States and near American bases in European countries.

Small, easily weaponizable drones have become a feature of battlefields from the Middle East to Ukraine. Now the threat looms over the US homeland—and the Pentagon's ability to respond is limited.