ABSTRACT: The assumption that the United States homeland is a sanctuary from attack no longer holds. Americans now depend so deeply on cyber-enabled IT and OT systems that rivals—whether strong or weak—can reach directly into the infrastructures that support U.S. military power and social stability. What once appeared to be distant “away-game” contests now routinely materialize at home: within the systems of military installations, logistics networks that sustain readiness, and civilian systems on which mobilization depends. These intrusions do not resemble declared hostilities. Instead, they unfold as hybrid campaigns marked by ambiguity: state-directed actors working through criminal proxies, covert exploitation disguised as routine network activity, and operations deliberately crafted to obscure attribution and intent