thedrive.com/the-war-zone /17987/usaf-is-jamming-gps-in-the-western-u-s-for-largest-ever-red-flag-air-war-exercise
USAF Is Jamming GPS In The Western U.S. For Largest Ever Red Flag Air War Exercise
The use of the mysterious jamming technology will impact the navigation of aircraft operating as far away from Nevada as Colorado.