The United States regularly tests its ability to respond to disasters, cyber incidents, terrorist attacks, financial shocks, and military crises. The Department of War exercises combat forces, the Cybersecurity and Infrastructure Security Agency (CISA) works with critical infrastructure operators, states rehearse emergency response, and financial regulators stress-test banks. These efforts often involve multiple agencies, regional partners, and pre-positioned resources. Yet they rarely test, on a national scale and over sustained time, how simultaneous disruptions across military, civilian, economic, and information systems could combine into a single adversary campaign. That integration gap is becoming increasingly dangerous.