Polish authorities said they detected 19 violations of their airspace, prompting a million-dollar response as fighter jets were scrambled and Patriot air defense systems placed on alert. Up to four ...

For over three years, Ukraine has been battling Russian attack drones. On Wednesday, NATO confronted a similar challenge.

Abstract: The microelectromechanical system inertial measurement unit (MEMS-IMU)-based attitude and heading reference system (AHRS) holds significant importance for ...