Through its recent Cyber Blitz exercise, the Army learned lessons regarding how well electronic warfare personnel can conduct cyber planning and how integrating electronic warfare and signal intelligence would work on the battlefield.
In the Cold War I read about how American maneuver units in field exercises were sent into chaos by other Army units that gave fake orders and otherwise used radios to disrupt command and control.
Adding modern precision firepower to modernized signal intelligence and sometimes Internet-based electronic warfare makes mastering that environment extremely important.
So good.