DTRA serves as the Department of Defense's Executive Agent for the annual Nuclear Weapon Accident/ Incident Exercise (NUWAIX) in concert with the US Navy and Air Force.  The annual week-long event exercises policies/procedures to replicate the interagency response as part of an incident or accident scenario involving an Initial Response Force and follow on Response Task Force.  The exercise is scenario-driven and along with the services involves individuals from DOE, FBI, DHS and local stare and tribal entities.