I've heard this, too, but never gotten independent confirmation of it.
I'm pretty sure that the military has been doing this type of training for years. They do need to practice before they do it for real in Iraq or Afghanistan (or wherever). Personally, I think that Jade Helm is designed to condition the civilian population to a military presence.
“... to condition the civilian population to a military presence.”
You could be right .. but I sure hope you’re not.