AUGUSTA, Ga. — Fierce battles being waged in Ukraine are showcasing cyber and electronic warfare and their consequences for connectivity and communications, according to the deputy commanding general at U.S. Army Training and Doctrine Command. “If we’re looking to see how a modern battlefield is impacted by EW and cyber warfare, we need to look no further than what is going on right now” in Eastern Europe, Lt. Gen. Maria Gervais said Aug. 16 at the AFCEA TechNet Augusta conference . “Everything