Vibrant Response is an annual U.S. Northern Command directed command post exercise. As U.S. Northern Command's Joint Force Land Component Command, U.S. Army North is Vibrant Response 23's executive agent responsible for ensuring the training focuses on a simulated Chemical, Biological, Radiological, Nuclear (CBRN) disaster scenario designed to validate U.S. Northern Command's CBRN Response Enterprise's ability to exercise short-notice and no-notice deployment of military forces at the request of civil authorities to save lives, alleviate human suffering, and mitigate property damage following a catastrophic CBRN event.