The Marine Corps must prepare to fight in electromagnetic darkness.
The edge the U.S. Marine Corps possessed in offensive electronic warfare (EW) before 2003 is gone, worn away in the years since by overreliance on nearly unmatched dominance of the electromagnetic (EM) spectrum during operations in Afghanistan and Iraq. Russia’s continued development and use of EW poses a grave but not new risk to the United States in potential future conflicts. The Marine Corps must identify, plan for, and train to overcome its overall deficit in this vital area of conflict. Full denial of the EM spectrum is a likely eventuality in near-future conflicts.