The US Army tried that in an exercise in Germany in which Ukrainian drone operators were the OPFOR. The OPFOR won that engagement very easily, and in a real world shooting fight, it would have been a disaster for the US forces.
Because of that—all of us learn more from our failures than our successes—the exercise, Combined Resolve, was a treasure trove of learning opportunities regarding ground forces operating in a hostile drone environment.
Exercises like Combined Resolve are run precisely so that forces can experience realistic combat conditions. Army leaders in Europe over recent years have taken advantage of having Ukrainian forces on hand to participate and impart their hard-won skills to US and allied troops in practice, on simulated battlefields. The expectation is that failures are educational. British and Swedish exercises have also resulted in easy Ukrainian triumphs.
The problem with this, though, is identified by Air Force General Alexus Grynkewich, Commander, United States European Command, and Supreme Allied Commander Europe:
You can’t get training like this in the United States.
Grynkewich added that after NATO forces exercise against Ukrainian forces, “The change is remarkable.”
Why can’t we get that sort of training stateside? The USAF has stateside exercises where the OPFOR fly the actual aircraft of enemy nations where we have examples of them, and uses USAF aircraft flown by pilots steeped in enemy tactics and doctrine where enemy aircraft aren’t available. The Navy’s air forces do the same.
America pioneered using long-range drones in war. The Pentagon has recently spent billions acquiring new drone and counterdrone technology and formed special units to operate it.
Still, in the Middle East this year, the US has struggled to defend against Iran’s long-range drones, which have killed and injured soldiers and destroyed aircraft.
Why don’t we have drone exercises—especially with the short-range drones optimized for attacking close-in OPFOR or OPFOR in contact with our formations—to train for dealing with, operating in, and defeating enemy forces operating under or behind their drones?
One answer to my question, I freely speculate, is that there are too many bureaucrats, both uniformed and civilian, in the Pentagon. These folks are clogging up mission development, weapons design and development, and weapons acquisition, and therewith are badly slowing down field training for this environment by denying our field personnel the requisite equipment.
Another answer, which dovetails with that Pentagon bloat (again, I freely speculate), is that there is too many politics involved in the development and acquisition of these systems. Congressmen and Senators fight for the associated spending to be done in their districts and States, too often balkanizing the whole process, slowing it down, making it less efficient, and driving up costs entirely artificially.
Clear those two, and the situation, both in the training and on the battlefield, will greatly improve.