Top US and NATO officials have confirmed that Russia has extensive capabilities to shut down enemy communications.Here.
Russia maintains an ability to destroy command-and-control networks by jamming radio communications, radars and GPS signals, according to Laurie Buckhout, former chief of the US Army's electronic warfare division.
In contrast with the US, Russia has large units dedicated to electronic warfare, known as EW, which it dedicates to ground electronic attack, jamming communications, radar and command-and-control nets, he added.
Isolated units or ships will be increasingly vulnerable. Company Landing Teams, Distributed Operations and Independent Ship Operations are just asking to see our forces found, fixed and destroyed.....with backup arriving too late to help.
Even worse? China is heading down the same road. Electronic warfare is a major part of their ground forces...and its aimed at enemy ground forces.