So reports Army Col. Liam Collins in the August issue of ARMY magazine. Here’s how it works:

“The Russians are adept at identifying Ukrainian positions by their electrometric signatures,” writes Collins. One would expect that, but the thing that impressed me what came next.

“In one tactic, soldiers receive texts telling them they are ‘surrounded and abandoned.’ Minutes later, their families receive a text stating, ‘Your son is killed in action,’ which often prompts a call or text to the soldiers. Minutes later, soldiers receive another message telling them to ‘retreat and live,’ followed by an artillery strike to the location where a large group of cellphones was detected.”

Collins, who has spent a lot of time in Ukraine lately, and who also holds a Ph.D. from Princeton, notes that in this one action, “electronic warfare is combined with cyberwarfare, information operations, and artillery strikes.”