Interesting. Glad to see the military conducting exercises without GPS, now that Russia has shown its willingness to jam it. In war we must be prepared to go without this incredibly-useful resource.
The year’s first iteration of the USAF’s premier set of aerial war games, known commonly as Red Flag, is kicking off today at Nellis Air Force Base just outside of Las Vegas, but this exercise will be different than any in the past. Not only is it the largest of its kind in the exercise’s 42 year history, but the USAF is going to blackout GPS over the sprawling Nevada Test and Training Range to challenge aircrews and their weaponry under realistic fighting conditions. The tactic will spill over throughout the region, with warnings being posted stating inconsistent GPS service could be experienced by aircrews flying throughout the western United States.
Source: USAF Is Jamming GPS In The Western U.S. For Largest Ever Red Flag Air War Exercise – The Drive
Bonus: Read more of the Navy’s rationale for blocking GPS.