U.S. Army North conducts Exercise Vibrant Response 17 to confirm the operational readiness and tactical capabilities of major elements of DOD's specialized forces designed to respond to chemical, biological, radiological and nuclear (CBRN) incidents in support of local, state and federal civilian agencies. Exercise Vibrant Response is the largest annual exercise for DOD's specialized response forces, with active, guard and reserve personnel training from all Services. The training exercise also includes local, state and federal emergency response agencies as well as participants from Canada and Mexico.